diff --git a/yarn.lock b/yarn.lock
index 8b76908..fd702f8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,147 +2,6 @@
 # yarn lockfile v1
 
 
-"@abandonware/bluetooth-hci-socket@^0.5.3-3":
-  version "0.5.3-5"
-  resolved "https://registry.yarnpkg.com/@abandonware/bluetooth-hci-socket/-/bluetooth-hci-socket-0.5.3-5.tgz#c4912d408398f4faba90077da836bad8965c623e"
-  integrity sha512-q9DupPXYcqLyLFrmJqYDaqXoN0fOR4qOZA39dJbEeu1M583Ghr5Bn+JlEAnA6l88DJSBZiyjtCgItDeUfuRwMA==
-  dependencies:
-    debug "^4.1.1"
-    nan "^2.14.0"
-    node-pre-gyp "^0.14.0"
-  optionalDependencies:
-    usb "^1.6.2"
-
-"@abandonware/noble@1.9.2-5":
-  version "1.9.2-5"
-  resolved "https://registry.yarnpkg.com/@abandonware/noble/-/noble-1.9.2-5.tgz#c5fcbe8af7ccd55fe8175d784af4c0a8d0b51703"
-  integrity sha512-Y1eyxDoA9kvKeAgd6mQ9c4qDbqQbqlPR56LkbtlAqptGB4HT/8KQweqqyTsj4CtdhbvCAt1G+J+2nE35WU9fBg==
-  dependencies:
-    debug "^4.1.1"
-    napi-thread-safe-callback "0.0.6"
-    node-addon-api "^1.1.0"
-  optionalDependencies:
-    "@abandonware/bluetooth-hci-socket" "^0.5.3-3"
-
-"@babel/helper-module-imports@^7.8.3":
-  version "7.8.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.8.3.tgz#7fe39589b39c016331b6b8c3f441e8f0b1419498"
-  integrity sha512-R0Bx3jippsbAEtzkpZ/6FIiuzOURPcMjHp+Z6xPe6DtApDJx+w7UYyOLanZqO8+wKR9G10s/FmHXvxaMd9s6Kg==
-  dependencies:
-    "@babel/types" "^7.8.3"
-
-"@babel/helper-plugin-utils@^7.8.3":
-  version "7.8.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.8.3.tgz#9ea293be19babc0f52ff8ca88b34c3611b208670"
-  integrity sha512-j+fq49Xds2smCUNYmEHF9kGNkhbet6yVIBp4e6oeQpH1RUs/Ir06xUKzDjDkGcaaokPiTNs2JBWHjaE4csUkZQ==
-
-"@babel/plugin-transform-runtime@^7.5.5":
-  version "7.8.3"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-runtime/-/plugin-transform-runtime-7.8.3.tgz#c0153bc0a5375ebc1f1591cb7eea223adea9f169"
-  integrity sha512-/vqUt5Yh+cgPZXXjmaG9NT8aVfThKk7G4OqkVhrXqwsC5soMn/qTCxs36rZ2QFhpfTJcjw4SNDIZ4RUb8OL4jQ==
-  dependencies:
-    "@babel/helper-module-imports" "^7.8.3"
-    "@babel/helper-plugin-utils" "^7.8.3"
-    resolve "^1.8.1"
-    semver "^5.5.1"
-
-"@babel/runtime@^7.5.5":
-  version "7.8.7"
-  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.8.7.tgz#8fefce9802db54881ba59f90bb28719b4996324d"
-  integrity sha512-+AATMUFppJDw6aiR5NVPHqIQBlV/Pj8wY/EZH+lmvRdUo9xBaz/rF3alAwFJQavvKfeOlPE7oaaDHVbcySbCsg==
-  dependencies:
-    regenerator-runtime "^0.13.4"
-
-"@babel/types@^7.8.3":
-  version "7.8.7"
-  resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.8.7.tgz#1fc9729e1acbb2337d5b6977a63979b4819f5d1d"
-  integrity sha512-k2TreEHxFA4CjGkL+GYjRyx35W0Mr7DP5+9q6WMkyKXB+904bYmG40syjMFV0oLlhhFCwWl0vA0DyzTDkwAiJw==
-  dependencies:
-    esutils "^2.0.2"
-    lodash "^4.17.13"
-    to-fast-properties "^2.0.0"
-
-"@ledgerhq/devices@^4.78.0":
-  version "4.78.0"
-  resolved "https://registry.yarnpkg.com/@ledgerhq/devices/-/devices-4.78.0.tgz#149b572f0616096e2bd5eb14ce14d0061c432be6"
-  integrity sha512-tWKS5WM/UU82czihnVjRwz9SXNTQzWjGJ/7+j/xZ70O86nlnGJ1aaFbs5/WTzfrVKpOKgj1ZoZkAswX67i/JTw==
-  dependencies:
-    "@ledgerhq/errors" "^4.78.0"
-    "@ledgerhq/logs" "^4.72.0"
-    rxjs "^6.5.3"
-
-"@ledgerhq/errors@^4.78.0":
-  version "4.78.0"
-  resolved "https://registry.yarnpkg.com/@ledgerhq/errors/-/errors-4.78.0.tgz#23daf3af54d03b1bda3e616002b555da1bdb705a"
-  integrity sha512-FX6zHZeiNtegBvXabK6M5dJ+8OV8kQGGaGtuXDeK/Ss5EmG4Ltxc6Lnhe8hiHpm9pCHtktOsnUVL7IFBdHhYUg==
-
-"@ledgerhq/hw-transport-node-ble@^4.73.4":
-  version "4.78.0"
-  resolved "https://registry.yarnpkg.com/@ledgerhq/hw-transport-node-ble/-/hw-transport-node-ble-4.78.0.tgz#ecfdb3ed01c227748230ad25c438bf59f76c24b5"
-  integrity sha512-RWZq7JOL9K2j7DExd1xo5pSHcz9fbBitLnWamTZZrkXMpprCBIt5UfV9bTV66Fx6+/GGVeMldSl4r+LJowi8wg==
-  dependencies:
-    "@abandonware/noble" "1.9.2-5"
-    "@ledgerhq/devices" "^4.78.0"
-    "@ledgerhq/errors" "^4.78.0"
-    "@ledgerhq/hw-transport" "^4.78.0"
-    "@ledgerhq/logs" "^4.72.0"
-    invariant "^2.2.4"
-    rxjs "^6.5.3"
-
-"@ledgerhq/hw-transport-node-hid-noevents@^4.78.0":
-  version "4.78.0"
-  resolved "https://registry.yarnpkg.com/@ledgerhq/hw-transport-node-hid-noevents/-/hw-transport-node-hid-noevents-4.78.0.tgz#6f0dbe1bbfad6516b42ad2d6b6b34a8b07e4cd46"
-  integrity sha512-CJPVR4wksq+apiXH2GnsttguBxmj9zdM2HjqZ3dHZN8SFW/9Xj3k+baS+pYoUISkECVxDrdfaW3Bd5dWv+jPUg==
-  dependencies:
-    "@ledgerhq/devices" "^4.78.0"
-    "@ledgerhq/errors" "^4.78.0"
-    "@ledgerhq/hw-transport" "^4.78.0"
-    "@ledgerhq/logs" "^4.72.0"
-    node-hid "^0.7.9"
-
-"@ledgerhq/hw-transport-node-hid@^4.73.4":
-  version "4.78.0"
-  resolved "https://registry.yarnpkg.com/@ledgerhq/hw-transport-node-hid/-/hw-transport-node-hid-4.78.0.tgz#abd99e0f918b810a61c035e5ab8c2bd8807aff55"
-  integrity sha512-OMrY2ecfQ1XjMAuuHqu3n3agMPR06HN1s0ENrKc+Twbb5A17jujpv07WzjxfTN2V1G7vgeZpRqrg2ulhowWbdg==
-  dependencies:
-    "@ledgerhq/devices" "^4.78.0"
-    "@ledgerhq/errors" "^4.78.0"
-    "@ledgerhq/hw-transport" "^4.78.0"
-    "@ledgerhq/hw-transport-node-hid-noevents" "^4.78.0"
-    "@ledgerhq/logs" "^4.72.0"
-    lodash "^4.17.15"
-    node-hid "^0.7.9"
-    usb "^1.6.0"
-
-"@ledgerhq/hw-transport@^4.78.0":
-  version "4.78.0"
-  resolved "https://registry.yarnpkg.com/@ledgerhq/hw-transport/-/hw-transport-4.78.0.tgz#714786658e1f2fbc0569e06e2abf8d15d310d931"
-  integrity sha512-xQu16OMPQjFYLjqCysij+8sXtdWv2YLxPrB6FoLvEWGTlQ7yL1nUBRQyzyQtWIYqZd4THQowQmzm1VjxuN6SZw==
-  dependencies:
-    "@ledgerhq/devices" "^4.78.0"
-    "@ledgerhq/errors" "^4.78.0"
-    events "^3.0.0"
-
-"@ledgerhq/logs@^4.72.0":
-  version "4.72.0"
-  resolved "https://registry.yarnpkg.com/@ledgerhq/logs/-/logs-4.72.0.tgz#43df23af013ad1135407e5cf33ca6e4c4c7708d5"
-  integrity sha512-o+TYF8vBcyySRsb2kqBDv/KMeme8a2nwWoG+lAWzbDmWfb2/MrVWYCVYDYvjXdSoI/Cujqy1i0gIDrkdxa9chA==
-
-"@machinomy/hdwallet-provider@^2.0.6":
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/@machinomy/hdwallet-provider/-/hdwallet-provider-2.0.6.tgz#bcfe780004ebe26383a62cea4dcd4b3a49dbd770"
-  integrity sha512-pYgs/aLpRw+MssevaqfTcdQmkjWrnhJR5IPdn+KxNFxxvEC9w80GIaYoHOEPdHnOwheiFx9cVBOP+bUb8dN0xA==
-  dependencies:
-    babel-polyfill "^6.26.0"
-    bip39 "^3.0.2"
-    eth-hd-keyring "^3.4.0"
-    ethereumjs-tx "^2.1.1"
-    ethereumjs-util "^6.1.0"
-    web3-provider-engine "^15.0.4"
-  optionalDependencies:
-    "@ledgerhq/hw-transport-node-ble" "^4.73.4"
-    "@ledgerhq/hw-transport-node-hid" "^4.73.4"
-
 "@sindresorhus/is@^0.14.0":
   version "0.14.0"
   resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.14.0.tgz#9fb3a3cf3132328151f353de4632e01e52102bea"
@@ -155,7 +14,7 @@
   dependencies:
     defer-to-connect "^1.0.1"
 
-"@truffle/hdwallet-provider@^1.0.33":
+"@truffle/hdwallet-provider@1.0.33":
   version "1.0.33"
   resolved "https://registry.yarnpkg.com/@truffle/hdwallet-provider/-/hdwallet-provider-1.0.33.tgz#b037f5a7903d79a06bdcf5586e1c4a8d51fc9dfd"
   integrity sha512-hXLZafDyTXH2s6oKnjlrvZhewriHp4NUsYaGOyaihWFpmmUAOqhQSy3vVWD7QzloNCwZZIlQZlOYudPOEyFJOw==
@@ -169,7 +28,7 @@
     ethereumjs-wallet "^0.6.3"
     source-map-support "^0.5.16"
     web3 "1.2.1"
-    web3-provider-engine "https://github.com/trufflesuite/provider-engine#web3-one"
+    web3-provider-engine "git+https://github.com/trufflesuite/provider-engine.git#web3-one"
 
 "@types/bn.js@^4.11.3":
   version "4.11.6"
@@ -183,21 +42,11 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-13.9.1.tgz#96f606f8cd67fb018847d9b61e93997dabdefc72"
   integrity sha512-E6M6N0blf/jiZx8Q3nb0vNaswQeEyn0XlupO+xN6DtJ6r6IT4nXrTry7zhIfYvFCl3/8Cu6WIysmUBKiqV0bqQ==
 
-"@types/node@11.11.6":
-  version "11.11.6"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-11.11.6.tgz#df929d1bb2eee5afdda598a41930fe50b43eaa6a"
-  integrity sha512-Exw4yUWMBXM3X+8oqzJNRqZSwUAaS4+7NdvHqQuFi/d+synz++xmX3QIf+BFqneW8N31R8Ky+sikfZUXq07ggQ==
-
 "@types/node@^10.3.2":
   version "10.17.17"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-10.17.17.tgz#7a183163a9e6ff720d86502db23ba4aade5999b8"
   integrity sha512-gpNnRnZP3VWzzj5k3qrpRC6Rk3H/uclhAVo1aIvwzK5p5cOrs9yEyQ8H/HBsBY0u5rrWxXEiVPQ0dEB6pkjE8Q==
 
-abbrev@1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
-  integrity sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==
-
 abstract-leveldown@~2.6.0:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-2.6.3.tgz#1c5e8c6a5ef965ae8c35dfb3a8770c476b82c4b8"
@@ -250,11 +99,6 @@ ansi-regex@^2.0.0:
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
   integrity sha1-w7M6te42DYbg5ijwRorn7yfWVN8=
 
-ansi-regex@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-3.0.0.tgz#ed0317c322064f79466c02966bddb605ab37d998"
-  integrity sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=
-
 ansi-regex@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.1.0.tgz#8b9f8f08cf1acb843756a839ca8c7e3168c51997"
@@ -277,7 +121,7 @@ any-promise@1.3.0, any-promise@^1.3.0:
   resolved "https://registry.yarnpkg.com/any-promise/-/any-promise-1.3.0.tgz#abc6afeedcea52e809cdc0376aed3ce39635d17f"
   integrity sha1-q8av7tzqUugJzcA3au0845Y10X8=
 
-aproba@^1.0.3, aproba@^1.1.1:
+aproba@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
   integrity sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==
@@ -287,14 +131,6 @@ arch@^2.1.1:
   resolved "https://registry.yarnpkg.com/arch/-/arch-2.1.1.tgz#8f5c2731aa35a30929221bb0640eed65175ec84e"
   integrity sha512-BLM56aPo9vLLFVa8+/+pJLnrZ7QGGTVHWsCwieAWT9o9K8UeGaQbzZbGoabWLOo2ksBCztoXdqBZBplqLDDCSg==
 
-are-we-there-yet@~1.1.2:
-  version "1.1.5"
-  resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz#4b35c2944f062a8bfcda66410760350fe9ddfc21"
-  integrity sha512-5hYdAkZlcG8tOLujVDTgCT+uPX0VnpAH28gWsLfzpXYm7wP6mp5Q/gYyR7YQ0cKVJcXJnl3j2kpBan13PtQf6w==
-  dependencies:
-    delegates "^1.0.0"
-    readable-stream "^2.0.6"
-
 array-flatten@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
@@ -350,11 +186,6 @@ asynckit@^0.4.0:
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
   integrity sha1-x57Zf380y48robyXkLzDZkdLS3k=
 
-await-semaphore@^0.1.3:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/await-semaphore/-/await-semaphore-0.1.3.tgz#2b88018cc8c28e06167ae1cdff02504f1f9688d3"
-  integrity sha512-d1W2aNSYcz/sxYO4pMGX9vq65qOTu0P800epMud+6cYYX0QcT7zyqcxec3VWzpgvdXo57UWmVbZpLMjX2m1I7Q==
-
 aws-sign2@~0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
@@ -778,15 +609,6 @@ babel-plugin-transform-strict-mode@^6.24.1:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
-babel-polyfill@^6.26.0:
-  version "6.26.0"
-  resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.26.0.tgz#379937abc67d7895970adc621f284cd966cf2153"
-  integrity sha1-N5k3q8Z9eJWXCtxiHyhM2WbPIVM=
-  dependencies:
-    babel-runtime "^6.26.0"
-    core-js "^2.5.0"
-    regenerator-runtime "^0.10.5"
-
 babel-preset-env@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/babel-preset-env/-/babel-preset-env-1.7.0.tgz#dea79fa4ebeb883cd35dab07e260c1c9c04df77a"
@@ -924,14 +746,14 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
-bindings@^1.2.1, bindings@^1.4.0, bindings@^1.5.0:
+bindings@^1.2.1, bindings@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.5.0.tgz#10353c9e945334bc0511a6d90b38fbc7c9c504df"
   integrity sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==
   dependencies:
     file-uri-to-path "1.0.0"
 
-bip39@^2.2.0, bip39@^2.4.2:
+bip39@^2.4.2:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/bip39/-/bip39-2.6.0.tgz#9e3a720b42ec8b3fbe4038f1e445317b6a99321c"
   integrity sha512-RrnQRG2EgEoqO24ea+Q/fftuPUZLmrEM3qNhhGsA3PbaXaCW791LTzPuVyx/VprXQcTbPJ3K3UeTna8ZnVl2sg==
@@ -942,16 +764,6 @@ bip39@^2.2.0, bip39@^2.4.2:
     safe-buffer "^5.0.1"
     unorm "^1.3.3"
 
-bip39@^3.0.2:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/bip39/-/bip39-3.0.2.tgz#2baf42ff3071fc9ddd5103de92e8f80d9257ee32"
-  integrity sha512-J4E1r2N0tUylTKt07ibXvhpT2c5pyAFgvuA5q1H9uDy6dEGpjV8jmymh3MTYJDLCNbIVClSB9FbND49I6N24MQ==
-  dependencies:
-    "@types/node" "11.11.6"
-    create-hash "^1.1.0"
-    pbkdf2 "^3.0.9"
-    randombytes "^2.0.1"
-
 bip66@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/bip66/-/bip66-1.1.5.tgz#01fa8748785ca70955d5011217d1b3139969ca22"
@@ -967,13 +779,6 @@ bl@^1.0.0:
     readable-stream "^2.3.5"
     safe-buffer "^5.1.1"
 
-bl@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/bl/-/bl-4.0.1.tgz#8c9b4fb754e80cc86463077722be7b88b4af3f42"
-  integrity sha512-FL/TdvchukRCuWVxT0YMO/7+L5TNeNrVFvRU2IY63aUyv9mpt8splf2NEr6qXtPo5fya5a66YohQKvGNmLrWNA==
-  dependencies:
-    readable-stream "^3.4.0"
-
 bluebird@^3.5.0, bluebird@^3.5.5:
   version "3.7.2"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.7.2.tgz#9f229c15be272454ffa973ace0dbee79a1b0c36f"
@@ -984,7 +789,7 @@ bn.js@4.11.6:
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.6.tgz#53344adb14617a13f6e8dd2ce28905d1c0ba3215"
   integrity sha1-UzRK2xRhehP26N0s4okF0cC6MhU=
 
-bn.js@4.11.8, bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.10.0, bn.js@^4.11.0, bn.js@^4.11.1, bn.js@^4.11.6, bn.js@^4.11.8, bn.js@^4.4.0, bn.js@^4.8.0:
+bn.js@4.11.8, bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.11.0, bn.js@^4.11.1, bn.js@^4.11.6, bn.js@^4.11.8, bn.js@^4.4.0:
   version "4.11.8"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
   integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
@@ -1057,14 +862,6 @@ browserify-rsa@^4.0.0:
     bn.js "^4.1.0"
     randombytes "^2.0.1"
 
-browserify-sha3@^0.0.4:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/browserify-sha3/-/browserify-sha3-0.0.4.tgz#086c47b8c82316c9d47022c26185954576dd8e26"
-  integrity sha1-CGxHuMgjFsnUcCLCYYWVRXbdjiY=
-  dependencies:
-    js-sha3 "^0.6.1"
-    safe-buffer "^5.1.1"
-
 browserify-sign@^4.0.0:
   version "4.0.4"
   resolved "https://registry.yarnpkg.com/browserify-sign/-/browserify-sign-4.0.4.tgz#aa4eb68e5d7b658baa6bf6a57e630cbd7a93d298"
@@ -1107,11 +904,6 @@ bs58check@^2.1.2:
     create-hash "^1.1.0"
     safe-buffer "^5.1.2"
 
-btoa@^1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/btoa/-/btoa-1.2.1.tgz#01a9909f8b2c93f6bf680ba26131eb30f7fa3d73"
-  integrity sha512-SB4/MIGlsiVkMcHmT+pSmIPoNDoHg+7cMzmt3Uxt628MTz2487DKSqK/fuhFBrkuqrYv5UCEnACpF4dTFNKc/g==
-
 buffer-alloc-unsafe@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz#bd7dc26ae2972d0eda253be061dba992349c19f0"
@@ -1265,16 +1057,11 @@ clone-response@^1.0.2:
   dependencies:
     mimic-response "^1.0.0"
 
-clone@^2.0.0, clone@^2.1.1:
+clone@^2.0.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/clone/-/clone-2.1.2.tgz#1b7f4b9f591f1e8f83670401600345a02887435f"
   integrity sha1-G39Ln1kfHo+DZwQBYANFoCiHQ18=
 
-code-point-at@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
-  integrity sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=
-
 coinstring@^2.0.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/coinstring/-/coinstring-2.3.0.tgz#cdb63363a961502404a25afb82c2e26d5ff627a4"
@@ -1324,11 +1111,6 @@ concat-stream@^1.5.0, concat-stream@^1.5.1:
     readable-stream "^2.2.2"
     typedarray "^0.0.6"
 
-console-control-strings@^1.0.0, console-control-strings@~1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/console-control-strings/-/console-control-strings-1.1.0.tgz#3d7cf4464db6446ea644bf4b39507f9851008e8e"
-  integrity sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=
-
 content-disposition@0.5.3:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.3.tgz#e130caf7e7279087c5616c2007d0485698984fbd"
@@ -1485,20 +1267,6 @@ debug@2.6.9, debug@^2.2.0, debug@^2.6.8, debug@^2.6.9:
   dependencies:
     ms "2.0.0"
 
-debug@^3.2.6:
-  version "3.2.6"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
-  integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
-  dependencies:
-    ms "^2.1.1"
-
-debug@^4.1.1:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
-  integrity sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==
-  dependencies:
-    ms "^2.1.1"
-
 decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
@@ -1511,13 +1279,6 @@ decompress-response@^3.2.0, decompress-response@^3.3.0:
   dependencies:
     mimic-response "^1.0.0"
 
-decompress-response@^4.2.0:
-  version "4.2.1"
-  resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-4.2.1.tgz#414023cc7a302da25ce2ec82d0d5238ccafd8986"
-  integrity sha512-jOSne2qbyE+/r8G1VU+G/82LBs2Fs4LAsTiLSHOCOMZQl2OKZ6i8i4IyHemTe+/yIXOtTcRQMzPcgyhoFlqPkw==
-  dependencies:
-    mimic-response "^2.0.0"
-
 decompress-tar@^4.0.0, decompress-tar@^4.1.0, decompress-tar@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/decompress-tar/-/decompress-tar-4.1.1.tgz#718cbd3fcb16209716e70a26b84e7ba4592e5af1"
@@ -1583,11 +1344,6 @@ deep-equal@~1.1.1:
     object-keys "^1.1.1"
     regexp.prototype.flags "^1.2.0"
 
-deep-extend@^0.6.0:
-  version "0.6.0"
-  resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
-  integrity sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==
-
 defer-to-connect@^1.0.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/defer-to-connect/-/defer-to-connect-1.1.3.tgz#331ae050c08dcf789f8c83a7b81f0ed94f4ac591"
@@ -1617,11 +1373,6 @@ delayed-stream@~1.0.0:
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
   integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
-delegates@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
-  integrity sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=
-
 depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
@@ -1647,11 +1398,6 @@ detect-indent@^4.0.0:
   dependencies:
     repeating "^2.0.0"
 
-detect-libc@^1.0.2, detect-libc@^1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
-  integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
-
 diffie-hellman@^5.0.0:
   version "5.0.3"
   resolved "https://registry.yarnpkg.com/diffie-hellman/-/diffie-hellman-5.0.3.tgz#40e8ee98f55a2149607146921c63e1ae5f3d2875"
@@ -1755,7 +1501,7 @@ encoding@^0.1.11:
   dependencies:
     iconv-lite "~0.4.13"
 
-end-of-stream@^1.0.0, end-of-stream@^1.1.0, end-of-stream@^1.4.1:
+end-of-stream@^1.0.0, end-of-stream@^1.1.0:
   version "1.4.4"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.4.tgz#5ae64a5f45057baf3626ec14da0ca5e4b2431eb0"
   integrity sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==
@@ -1859,18 +1605,6 @@ eth-block-tracker@^3.0.0:
     pify "^2.3.0"
     tape "^4.6.3"
 
-eth-block-tracker@^4.4.2:
-  version "4.4.3"
-  resolved "https://registry.yarnpkg.com/eth-block-tracker/-/eth-block-tracker-4.4.3.tgz#766a0a0eb4a52c867a28328e9ae21353812cf626"
-  integrity sha512-A8tG4Z4iNg4mw5tP1Vung9N9IjgMNqpiMoJ/FouSFwNCGHv2X0mmOYwtQOJzki6XN7r7Tyo01S29p7b224I4jw==
-  dependencies:
-    "@babel/plugin-transform-runtime" "^7.5.5"
-    "@babel/runtime" "^7.5.5"
-    eth-query "^2.1.0"
-    json-rpc-random-id "^1.0.1"
-    pify "^3.0.0"
-    safe-event-emitter "^1.0.1"
-
 eth-ens-namehash@2.0.8:
   version "2.0.8"
   resolved "https://registry.yarnpkg.com/eth-ens-namehash/-/eth-ens-namehash-2.0.8.tgz#229ac46eca86d52e0c991e7cb2aef83ff0f68bcf"
@@ -1879,46 +1613,6 @@ eth-ens-namehash@2.0.8:
     idna-uts46-hx "^2.3.1"
     js-sha3 "^0.5.7"
 
-eth-hd-keyring@^3.4.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/eth-hd-keyring/-/eth-hd-keyring-3.5.0.tgz#3976d83a27b24305481c389178f290d9264e839d"
-  integrity sha512-Ix1LcWYxHMxCCSIMz+TLXLtt50zF6ZDd/TRVXthdw91IwOk1ajuf7QHg3bCDcfeUpdf9oEpwIPbL3xjDqEEjYw==
-  dependencies:
-    bip39 "^2.2.0"
-    eth-sig-util "^2.4.4"
-    eth-simple-keyring "^3.5.0"
-    ethereumjs-abi "^0.6.5"
-    ethereumjs-util "^5.1.1"
-    ethereumjs-wallet "^0.6.0"
-    events "^1.1.1"
-    xtend "^4.0.1"
-
-eth-json-rpc-errors@^1.0.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/eth-json-rpc-errors/-/eth-json-rpc-errors-1.1.1.tgz#148377ef55155585981c21ff574a8937f9d6991f"
-  integrity sha512-WT5shJ5KfNqHi9jOZD+ID8I1kuYWNrigtZat7GOQkvwo99f8SzAVaEcWhJUv656WiZOAg3P1RiJQANtUmDmbIg==
-  dependencies:
-    fast-safe-stringify "^2.0.6"
-
-eth-json-rpc-errors@^2.0.1, eth-json-rpc-errors@^2.0.2:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/eth-json-rpc-errors/-/eth-json-rpc-errors-2.0.2.tgz#c1965de0301fe941c058e928bebaba2e1285e3c4"
-  integrity sha512-uBCRM2w2ewusRHGxN8JhcuOb2RN3ueAOYH/0BhqdFmQkZx5lj5+fLKTz0mIVOzd4FG5/kUksCzCD7eTEim6gaA==
-  dependencies:
-    fast-safe-stringify "^2.0.6"
-
-eth-json-rpc-filters@^4.1.1:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/eth-json-rpc-filters/-/eth-json-rpc-filters-4.1.1.tgz#15277c66790236d85f798f4d7dc6bab99a798cd2"
-  integrity sha512-GkXb2h6STznD+AmMzblwXgm1JMvjdK9PTIXG7BvIkTlXQ9g0QOxuU1iQRYHoslF9S30BYBSoLSisAYPdLggW+A==
-  dependencies:
-    await-semaphore "^0.1.3"
-    eth-json-rpc-middleware "^4.1.4"
-    eth-query "^2.1.2"
-    json-rpc-engine "^5.1.3"
-    lodash.flatmap "^4.5.0"
-    safe-event-emitter "^1.0.1"
-
 eth-json-rpc-infura@^3.1.0:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/eth-json-rpc-infura/-/eth-json-rpc-infura-3.2.1.tgz#26702a821067862b72d979c016fd611502c6057f"
@@ -1929,16 +1623,6 @@ eth-json-rpc-infura@^3.1.0:
     json-rpc-engine "^3.4.0"
     json-rpc-error "^2.0.0"
 
-eth-json-rpc-infura@^4.0.1:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/eth-json-rpc-infura/-/eth-json-rpc-infura-4.0.2.tgz#8af1a1a2e9a0a82aaa302bbc96fb1a4c15d69b83"
-  integrity sha512-dvgOrci9lZqpjpp0hoC3Zfedhg3aIpLFVDH0TdlKxRlkhR75hTrKTwxghDrQwE0bn3eKrC8RsN1m/JdnIWltpw==
-  dependencies:
-    cross-fetch "^2.1.1"
-    eth-json-rpc-errors "^1.0.1"
-    eth-json-rpc-middleware "^4.1.4"
-    json-rpc-engine "^5.1.3"
-
 eth-json-rpc-middleware@^1.5.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/eth-json-rpc-middleware/-/eth-json-rpc-middleware-1.6.0.tgz#5c9d4c28f745ccb01630f0300ba945f4bef9593f"
@@ -1958,26 +1642,6 @@ eth-json-rpc-middleware@^1.5.0:
     promise-to-callback "^1.0.0"
     tape "^4.6.3"
 
-eth-json-rpc-middleware@^4.1.4, eth-json-rpc-middleware@^4.1.5:
-  version "4.4.1"
-  resolved "https://registry.yarnpkg.com/eth-json-rpc-middleware/-/eth-json-rpc-middleware-4.4.1.tgz#07d3dd0724c24a8d31e4a172ee96271da71b4228"
-  integrity sha512-yoSuRgEYYGFdVeZg3poWOwAlRI+MoBIltmOB86MtpoZjvLbou9EB/qWMOWSmH2ryCWLW97VYY6NWsmWm3OAA7A==
-  dependencies:
-    btoa "^1.2.1"
-    clone "^2.1.1"
-    eth-json-rpc-errors "^1.0.1"
-    eth-query "^2.1.2"
-    eth-sig-util "^1.4.2"
-    ethereumjs-block "^1.6.0"
-    ethereumjs-tx "^1.3.7"
-    ethereumjs-util "^5.1.2"
-    ethereumjs-vm "^2.6.0"
-    fetch-ponyfill "^4.0.0"
-    json-rpc-engine "^5.1.3"
-    json-stable-stringify "^1.0.1"
-    pify "^3.0.0"
-    safe-event-emitter "^1.0.1"
-
 eth-lib@0.2.7:
   version "0.2.7"
   resolved "https://registry.yarnpkg.com/eth-lib/-/eth-lib-0.2.7.tgz#2f93f17b1e23aec3759cd4a3fe20c1286a3fc1ca"
@@ -2015,30 +1679,6 @@ eth-sig-util@^1.4.2:
     ethereumjs-abi "git+https://github.com/ethereumjs/ethereumjs-abi.git"
     ethereumjs-util "^5.1.1"
 
-eth-sig-util@^2.4.4, eth-sig-util@^2.5.0:
-  version "2.5.2"
-  resolved "https://registry.yarnpkg.com/eth-sig-util/-/eth-sig-util-2.5.2.tgz#f30b94509786fa4fbf71adb3164b1701e15724a8"
-  integrity sha512-xvDojS/4reXsw8Pz/+p/qcM5rVB61FOdPbEtMZ8FQ0YHnPEzPy5F8zAAaZ+zj5ud0SwRLWPfor2Cacjm7EzMIw==
-  dependencies:
-    buffer "^5.2.1"
-    elliptic "^6.4.0"
-    ethereumjs-abi "0.6.5"
-    ethereumjs-util "^5.1.1"
-    tweetnacl "^1.0.0"
-    tweetnacl-util "^0.15.0"
-
-eth-simple-keyring@^3.5.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/eth-simple-keyring/-/eth-simple-keyring-3.5.0.tgz#c7fa285ca58d31ef44bc7db678b689f9ffd7b453"
-  integrity sha512-z9IPt9aoMWAw5Zc3Jk/HKbWPJNc7ivZ5ECNtl3ZoQUGRnwoWO71W5+liVPJtXFNacGOOGsBfqTqrXL9C4EnYYQ==
-  dependencies:
-    eth-sig-util "^2.5.0"
-    ethereumjs-abi "^0.6.5"
-    ethereumjs-util "^5.1.1"
-    ethereumjs-wallet "^0.6.0"
-    events "^1.1.1"
-    xtend "^4.0.1"
-
 eth-tx-summary@^3.1.2:
   version "3.2.4"
   resolved "https://registry.yarnpkg.com/eth-tx-summary/-/eth-tx-summary-3.2.4.tgz#e10eb95eb57cdfe549bf29f97f1e4f1db679035c"
@@ -2070,22 +1710,6 @@ ethereum-protocol@^1.0.1:
   resolved "https://registry.yarnpkg.com/ethereum-protocol/-/ethereum-protocol-1.0.1.tgz#b7d68142f4105e0ae7b5e178cf42f8d4dc4b93cf"
   integrity sha512-3KLX1mHuEsBW0dKG+c6EOJS1NBNqdCICvZW9sInmZTt5aY0oxmHVggYRE0lJu1tcnMD1K+AKHdLi6U43Awm1Vg==
 
-ethereumjs-abi@0.6.5:
-  version "0.6.5"
-  resolved "https://registry.yarnpkg.com/ethereumjs-abi/-/ethereumjs-abi-0.6.5.tgz#5a637ef16ab43473fa72a29ad90871405b3f5241"
-  integrity sha1-WmN+8Wq0NHP6cqKa2QhxQFs/UkE=
-  dependencies:
-    bn.js "^4.10.0"
-    ethereumjs-util "^4.3.0"
-
-ethereumjs-abi@^0.6.5:
-  version "0.6.8"
-  resolved "https://registry.yarnpkg.com/ethereumjs-abi/-/ethereumjs-abi-0.6.8.tgz#71bc152db099f70e62f108b7cdfca1b362c6fcae"
-  integrity sha512-Tx0r/iXI6r+lRsdvkFDlut0N08jWMnKRZ6Gkq+Nmw75lZe4e6o3EkSnkaBP5NF6+m5PTGAr9JP43N3LyeoglsA==
-  dependencies:
-    bn.js "^4.11.8"
-    ethereumjs-util "^6.0.0"
-
 "ethereumjs-abi@git+https://github.com/ethereumjs/ethereumjs-abi.git":
   version "0.6.8"
   resolved "git+https://github.com/ethereumjs/ethereumjs-abi.git#1cfbb13862f90f0b391d8a699544d5fe4dfb8c7b"
@@ -2129,7 +1753,7 @@ ethereumjs-common@^1.1.0, ethereumjs-common@^1.5.0:
   resolved "https://registry.yarnpkg.com/ethereumjs-common/-/ethereumjs-common-1.5.0.tgz#d3e82fc7c47c0cef95047f431a99485abc9bb1cd"
   integrity sha512-SZOjgK1356hIY7MRj3/ma5qtfr/4B5BL+G4rP/XSMYr2z1H5el4RX5GReYCKmQmYI/nSBmRnwrZ17IfHuG0viQ==
 
-ethereumjs-tx@^1.0.0, ethereumjs-tx@^1.1.1, ethereumjs-tx@^1.2.0, ethereumjs-tx@^1.2.2, ethereumjs-tx@^1.3.3, ethereumjs-tx@^1.3.7:
+ethereumjs-tx@^1.0.0, ethereumjs-tx@^1.1.1, ethereumjs-tx@^1.2.0, ethereumjs-tx@^1.2.2, ethereumjs-tx@^1.3.3:
   version "1.3.7"
   resolved "https://registry.yarnpkg.com/ethereumjs-tx/-/ethereumjs-tx-1.3.7.tgz#88323a2d875b10549b8347e09f4862b546f3d89a"
   integrity sha512-wvLMxzt1RPhAQ9Yi3/HKZTn0FZYpnsmQdbKYfUUpi4j1SEIcbkd9tndVjcPrufY3V7j2IebOpC00Zp2P/Ay2kA==
@@ -2145,17 +1769,6 @@ ethereumjs-tx@^2.1.1:
     ethereumjs-common "^1.5.0"
     ethereumjs-util "^6.0.0"
 
-ethereumjs-util@^4.3.0:
-  version "4.5.0"
-  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-4.5.0.tgz#3e9428b317eebda3d7260d854fddda954b1f1bc6"
-  integrity sha1-PpQosxfuvaPXJg2FT93alUsfG8Y=
-  dependencies:
-    bn.js "^4.8.0"
-    create-hash "^1.1.2"
-    keccakjs "^0.2.0"
-    rlp "^2.0.0"
-    secp256k1 "^3.0.1"
-
 ethereumjs-util@^5.0.0, ethereumjs-util@^5.0.1, ethereumjs-util@^5.1.1, ethereumjs-util@^5.1.2, ethereumjs-util@^5.1.3, ethereumjs-util@^5.1.5:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz#3e0c0d1741471acf1036052d048623dee54ad642"
@@ -2199,7 +1812,7 @@ ethereumjs-vm@^2.1.0, ethereumjs-vm@^2.3.4, ethereumjs-vm@^2.6.0:
     rustbn.js "~0.2.0"
     safe-buffer "^5.1.1"
 
-ethereumjs-wallet@^0.6.0, ethereumjs-wallet@^0.6.3:
+ethereumjs-wallet@^0.6.3:
   version "0.6.3"
   resolved "https://registry.yarnpkg.com/ethereumjs-wallet/-/ethereumjs-wallet-0.6.3.tgz#b0eae6f327637c2aeb9ccb9047b982ac542e6ab1"
   integrity sha512-qiXPiZOsStem+Dj/CQHbn5qex+FVkuPmGH7SvSnA9F3tdRDt8dLMyvIj3+U05QzVZNPYh4HXEdnzoYI4dZkr9w==
@@ -2258,11 +1871,6 @@ eventemitter3@3.1.2:
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.2.tgz#2d3d48f9c346698fce83a85d7d664e98535df6e7"
   integrity sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q==
 
-events@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/events/-/events-1.1.1.tgz#9ebdb7635ad099c70dcc4c2a1f5004288e8bd924"
-  integrity sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ=
-
 events@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/events/-/events-3.1.0.tgz#84279af1b34cb75aa88bf5ff291f6d0bd9b31a59"
@@ -2291,11 +1899,6 @@ execa@^2.0.3:
     signal-exit "^3.0.2"
     strip-final-newline "^2.0.0"
 
-expand-template@^2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/expand-template/-/expand-template-2.0.3.tgz#6e14b3fcee0f3a6340ecb57d2e8918692052a47c"
-  integrity sha512-XYfuKMvj4O35f/pOXLObndIRvyQ+/+6AhODh+OKWj9S9498pHHn/IMszH+gt0fBCRWMNfk1ZSp5x3AifmnI2vg==
-
 express@^4.14.0:
   version "4.17.1"
   resolved "https://registry.yarnpkg.com/express/-/express-4.17.1.tgz#4491fc38605cf51f8629d39c2b5d026f98a4c134"
@@ -2371,11 +1974,6 @@ fast-json-stable-stringify@^2.0.0:
   resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz#874bf69c6f404c2b5d99c481341399fd55892633"
   integrity sha512-lhd/wF+Lk98HZoTCtlVraHtfh5XYijIjalXck7saUtuanSDyLMxnHhSXEDJqHxD7msR8D0uCmqlkwjCV8xvwHw==
 
-fast-safe-stringify@^2.0.6:
-  version "2.0.7"
-  resolved "https://registry.yarnpkg.com/fast-safe-stringify/-/fast-safe-stringify-2.0.7.tgz#124aa885899261f68aedb42a7c080de9da608743"
-  integrity sha512-Utm6CdzT+6xsDk2m8S6uL8VHxNwI6Jub+e9NYTcAms28T84pTa25GJQV9j0CY0N1rM8hK4x6grpF2BQf+2qwVA==
-
 fd-slicer@~1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/fd-slicer/-/fd-slicer-1.1.0.tgz#25c7c89cb1f9077f8891bbe61d8f390eae256f1e"
@@ -2391,9 +1989,9 @@ fetch-ponyfill@^4.0.0:
     node-fetch "~1.7.1"
 
 figgy-pudding@^3.5.1:
-  version "3.5.1"
-  resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.5.1.tgz#862470112901c727a0e495a80744bd5baa1d6790"
-  integrity sha512-vNKxJHTEKNThjfrdJwHc7brvM6eVevuO5nTj6ez8ZQ1qbXTvGthucRF7S4vf2cr71QVnT70V34v0S1DyQsti0w==
+  version "3.5.2"
+  resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.5.2.tgz#b4eee8148abb01dcf1d1ac34367d59e12fa61d6e"
+  integrity sha512-0btnI/H8f2pavGMN8w40mlSKOfTK2SVJmBfBeVIj3kNw0swwgzyRq0d5TJVOwodFmtvpPeWPN/MCcfuWF0Ezbw==
 
 file-type@^3.8.0:
   version "3.9.0"
@@ -2526,20 +2124,6 @@ functional-red-black-tree@^1.0.1:
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
   integrity sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=
 
-gauge@~2.7.3:
-  version "2.7.4"
-  resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
-  integrity sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=
-  dependencies:
-    aproba "^1.0.3"
-    console-control-strings "^1.0.0"
-    has-unicode "^2.0.0"
-    object-assign "^4.1.0"
-    signal-exit "^3.0.0"
-    string-width "^1.0.1"
-    strip-ansi "^3.0.1"
-    wide-align "^1.1.0"
-
 get-stream@^2.2.0:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-2.3.1.tgz#5f38f93f346009666ee0150a054167f91bdd95de"
@@ -2574,11 +2158,6 @@ getpass@^0.1.1:
   dependencies:
     assert-plus "^1.0.0"
 
-github-from-package@0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/github-from-package/-/github-from-package-0.0.0.tgz#97fb5d96bfde8973313f20e8288ef9a167fa64ce"
-  integrity sha1-l/tdlr/eiXMxPyDoKI75oWf6ZM4=
-
 glob@^7.1.3, glob@^7.1.4, glob@~7.1.6:
   version "7.1.6"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
@@ -2693,11 +2272,6 @@ has-to-string-tag-x@^1.2.0:
   dependencies:
     has-symbol-support-x "^1.4.1"
 
-has-unicode@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
-  integrity sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=
-
 has@^1.0.3, has@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
@@ -2796,7 +2370,7 @@ http-signature@~1.2.0:
     jsprim "^1.2.2"
     sshpk "^1.7.0"
 
-iconv-lite@0.4.24, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
+iconv-lite@0.4.24, iconv-lite@~0.4.13:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
   integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
@@ -2820,13 +2394,6 @@ iferr@^0.1.5:
   resolved "https://registry.yarnpkg.com/iferr/-/iferr-0.1.5.tgz#c60eed69e6d8fdb6b3104a1fcbca1c192dc5b501"
   integrity sha1-xg7taebY/bazEEofy8ocGS3FtQE=
 
-ignore-walk@^3.0.1:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.3.tgz#017e2447184bfeade7c238e4aefdd1e8f95b1e37"
-  integrity sha512-m7o6xuOaT1aqheYHKf8W6J5pYH85ZI9w077erOzLje3JsB1gkafkAhHHY19dqjulgIZHFm32Cp5uNZgcQqdJKw==
-  dependencies:
-    minimatch "^3.0.4"
-
 immediate@^3.2.3:
   version "3.2.3"
   resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.2.3.tgz#d140fa8f614659bd6541233097ddaac25cdd991c"
@@ -2855,12 +2422,7 @@ inherits@2.0.3:
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
   integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
 
-ini@~1.3.0:
-  version "1.3.5"
-  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
-  integrity sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==
-
-invariant@^2.2.2, invariant@^2.2.4:
+invariant@^2.2.2:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.4.tgz#610f3c92c9359ce1db616e538008d23ff35158e6"
   integrity sha512-phJfQVBuaJM5raOpJjSfkiD6BpbCE4Ns//LaXl6wGYtUBY83nWS6Rf9tXm2e8VaK60JEjYldbPif/A2B1C2gNA==
@@ -2897,13 +2459,6 @@ is-fn@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-fn/-/is-fn-1.0.0.tgz#9543d5de7bcf5b08a22ec8a20bae6e286d510d8c"
   integrity sha1-lUPV3nvPWwiiLsiiC65uKG1RDYw=
 
-is-fullwidth-code-point@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
-  integrity sha1-754xOG8DGn8NZDr4L95QxFfvAMs=
-  dependencies:
-    number-is-nan "^1.0.0"
-
 is-fullwidth-code-point@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
@@ -3006,11 +2561,6 @@ js-sha3@0.5.7, js-sha3@^0.5.7:
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.5.7.tgz#0d4ffd8002d5333aabaf4a23eed2f6374c9f28e7"
   integrity sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc=
 
-js-sha3@^0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.6.1.tgz#5b89f77a7477679877f58c4a075240934b1f95c0"
-  integrity sha1-W4n3enR3Z5h39YxKB1JAk0sflcA=
-
 "js-tokens@^3.0.0 || ^4.0.0":
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -3053,16 +2603,6 @@ json-rpc-engine@^3.4.0, json-rpc-engine@^3.6.0:
     promise-to-callback "^1.0.0"
     safe-event-emitter "^1.0.1"
 
-json-rpc-engine@^5.1.3:
-  version "5.1.8"
-  resolved "https://registry.yarnpkg.com/json-rpc-engine/-/json-rpc-engine-5.1.8.tgz#5ba0147ce571899bbaa7133ffbc05317c34a3c7f"
-  integrity sha512-vTBSDEPJV1fPAsbm2g5sEuPjsgLdiab2f1CTn2PyRr8nxggUpA996PDlNQDsM0gnrA99F8KIBLq2nIKrOFl1Mg==
-  dependencies:
-    async "^2.0.1"
-    eth-json-rpc-errors "^2.0.1"
-    promise-to-callback "^1.0.0"
-    safe-event-emitter "^1.0.1"
-
 json-rpc-error@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/json-rpc-error/-/json-rpc-error-2.0.0.tgz#a7af9c202838b5e905c7250e547f1aff77258a02"
@@ -3070,7 +2610,7 @@ json-rpc-error@^2.0.0:
   dependencies:
     inherits "^2.0.1"
 
-json-rpc-random-id@^1.0.0, json-rpc-random-id@^1.0.1:
+json-rpc-random-id@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-rpc-random-id/-/json-rpc-random-id-1.0.1.tgz#ba49d96aded1444dbb8da3d203748acbbcdec8c8"
   integrity sha1-uknZat7RRE27jaPSA3SKy7zeyMg=
@@ -3144,14 +2684,6 @@ keccak@^2.0.0:
     nan "^2.14.0"
     safe-buffer "^5.2.0"
 
-keccakjs@^0.2.0:
-  version "0.2.3"
-  resolved "https://registry.yarnpkg.com/keccakjs/-/keccakjs-0.2.3.tgz#5e4e969ce39689a3861f445d7752ee3477f9fe72"
-  integrity sha512-BjLkNDcfaZ6l8HBG9tH0tpmDv3sS2mA7FNQxFHpCdzP3Gb2MVruXBSuoM66SnVxKJpAr5dKGdkHD+bDokt8fTg==
-  dependencies:
-    browserify-sha3 "^0.0.4"
-    sha3 "^1.2.2"
-
 keyv@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/keyv/-/keyv-3.1.0.tgz#ecc228486f69991e49e9476485a5be1e8fc5c4d9"
@@ -3209,12 +2741,7 @@ levelup@^1.2.1:
     semver "~5.4.1"
     xtend "~4.0.0"
 
-lodash.flatmap@^4.5.0:
-  version "4.5.0"
-  resolved "https://registry.yarnpkg.com/lodash.flatmap/-/lodash.flatmap-4.5.0.tgz#ef8cbf408f6e48268663345305c6acc0b778702e"
-  integrity sha1-74y/QI9uSCaGYzRTBcaswLd4cC4=
-
-lodash@^4.17.13, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.4:
+lodash@^4.17.14, lodash@^4.17.4:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
   integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
@@ -3366,11 +2893,6 @@ mimic-response@^1.0.0, mimic-response@^1.0.1:
   resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-1.0.1.tgz#4923538878eef42063cb8a3e3b0798781487ab1b"
   integrity sha512-j5EctnkH7amfV/q5Hgmoal1g2QHFJRraOtmx0JpIqkxhBhI/lJSl1nMpQ45hVarwNETOoWEimndZ4QK0RHxuxQ==
 
-mimic-response@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/mimic-response/-/mimic-response-2.1.0.tgz#d13763d35f613d09ec37ebb30bac0469c0ee8f43"
-  integrity sha512-wXqjST+SLt7R009ySCglWBCFpjUygmCIfD790/kVbiGmUgfYGuB14PiTd5DwVxSV4NcYHjzMkoj5LjQZwTQLEA==
-
 min-document@^2.19.0:
   version "2.19.0"
   resolved "https://registry.yarnpkg.com/min-document/-/min-document-2.19.0.tgz#7bd282e3f5842ed295bb748cdd9f1ffa2c824685"
@@ -3482,17 +3004,12 @@ ms@2.1.1:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
   integrity sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==
 
-ms@^2.1.1, ms@^2.1.2:
+ms@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
   integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
 
-nan@2.13.2:
-  version "2.13.2"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.13.2.tgz#f51dc7ae66ba7d5d55e1e6d4d8092e802c9aefe7"
-  integrity sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw==
-
-nan@^2.0.8, nan@^2.13.2, nan@^2.14.0, nan@^2.2.1:
+nan@^2.0.8, nan@^2.14.0, nan@^2.2.1:
   version "2.14.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
   integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
@@ -3502,25 +3019,6 @@ nano-json-stream-parser@^0.1.2:
   resolved "https://registry.yarnpkg.com/nano-json-stream-parser/-/nano-json-stream-parser-0.1.2.tgz#0cc8f6d0e2b622b479c40d499c46d64b755c6f5f"
   integrity sha1-DMj20OK2IrR5xA1JnEbWS3Vcb18=
 
-napi-build-utils@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/napi-build-utils/-/napi-build-utils-1.0.2.tgz#b1fddc0b2c46e380a0b7a76f984dd47c41a13806"
-  integrity sha512-ONmRUqK7zj7DWX0D9ADe03wbwOBZxNAfF20PlGfCWQcD3+/MakShIHrMqx9YwPTfxDdF1zLeL+RGZiR9kGMLdg==
-
-napi-thread-safe-callback@0.0.6:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/napi-thread-safe-callback/-/napi-thread-safe-callback-0.0.6.tgz#ef86a149b5312e480f74e89a614e6d9e3b17b456"
-  integrity sha512-X7uHCOCdY4u0yamDxDrv3jF2NtYc8A1nvPzBQgvpoSX+WB3jAe2cVNsY448V1ucq7Whf9Wdy02HEUoLW5rJKWg==
-
-needle@^2.2.1:
-  version "2.3.3"
-  resolved "https://registry.yarnpkg.com/needle/-/needle-2.3.3.tgz#a041ad1d04a871b0ebb666f40baaf1fb47867117"
-  integrity sha512-EkY0GeSq87rWp1hoq/sH/wnTWgFVhYlnIkbJ0YJFfRgEFlz2RraCjBpFQ+vrEgEdp0ThfyHADmkChEhcb7PKyw==
-  dependencies:
-    debug "^3.2.6"
-    iconv-lite "^0.4.4"
-    sax "^1.2.4"
-
 negotiator@0.6.2:
   version "0.6.2"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
@@ -3531,17 +3029,10 @@ next-tick@~1.0.0:
   resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
   integrity sha1-yobR/ogoFpsBICCOPchCS524NCw=
 
-node-abi@^2.7.0:
-  version "2.15.0"
-  resolved "https://registry.yarnpkg.com/node-abi/-/node-abi-2.15.0.tgz#51d55cc711bd9e4a24a572ace13b9231945ccb10"
-  integrity sha512-FeLpTS0F39U7hHZU1srAK4Vx+5AHNVOTP+hxBNQknR/54laTHSFIJkDWDqiquY1LeLUgTfPN7sLPhMubx0PLAg==
-  dependencies:
-    semver "^5.4.1"
-
-node-addon-api@^1.1.0:
-  version "1.7.1"
-  resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-1.7.1.tgz#cf813cd69bb8d9100f6bdca6755fc268f54ac492"
-  integrity sha512-2+DuKodWvwRTrCfKOeR24KIc5unKjOh8mz17NCzVnHWfjAdDqbfbjqh7gUT+BkXBRQM52+xCHciKWonJ3CbJMQ==
+node-addon-api@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-2.0.2.tgz#432cfa82962ce494b132e9d72a15b29f71ff5d32"
+  integrity sha512-Ntyt4AIXyaLIuMHF6IOoTakB3K+RWxwtsHNRxllEoA6vPwP9o4866g6YWDLUdnucilZhmkxiHwHr11gAENw+QA==
 
 node-fetch@2.1.2:
   version "2.1.2"
@@ -3556,70 +3047,16 @@ node-fetch@~1.7.1:
     encoding "^0.1.11"
     is-stream "^1.0.1"
 
-node-hid@^0.7.9:
-  version "0.7.9"
-  resolved "https://registry.yarnpkg.com/node-hid/-/node-hid-0.7.9.tgz#cc0cdf1418a286a7667f0b63642b5eeb544ccd05"
-  integrity sha512-vJnonTqmq3frCyTumJqG4g2IZcny3ynkfmbfDfQ90P3ZhRzcWYS/Um1ux6HFmAxmkaQnrZqIYHcGpL7kdqY8jA==
-  dependencies:
-    bindings "^1.5.0"
-    nan "^2.13.2"
-    prebuild-install "^5.3.0"
-
-node-pre-gyp@^0.14.0:
-  version "0.14.0"
-  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.14.0.tgz#9a0596533b877289bcad4e143982ca3d904ddc83"
-  integrity sha512-+CvDC7ZttU/sSt9rFjix/P05iS43qHCOOGzcr3Ry99bXG7VX953+vFyEuph/tfqoYu8dttBkE86JSKBO2OzcxA==
-  dependencies:
-    detect-libc "^1.0.2"
-    mkdirp "^0.5.1"
-    needle "^2.2.1"
-    nopt "^4.0.1"
-    npm-packlist "^1.1.6"
-    npmlog "^4.0.2"
-    rc "^1.2.7"
-    rimraf "^2.6.1"
-    semver "^5.3.0"
-    tar "^4.4.2"
-
-noop-logger@^0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/noop-logger/-/noop-logger-0.1.1.tgz#94a2b1633c4f1317553007d8966fd0e841b6a4c2"
-  integrity sha1-lKKxYzxPExdVMAfYlm/Q6EG2pMI=
-
-nopt@^4.0.1:
-  version "4.0.3"
-  resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.3.tgz#a375cad9d02fd921278d954c2254d5aa57e15e48"
-  integrity sha512-CvaGwVMztSMJLOeXPrez7fyfObdZqNUK1cPAEzLHrTybIua9pMdmmPR5YwtfNftIOMv3DPUhFaxsZMNTQO20Kg==
-  dependencies:
-    abbrev "1"
-    osenv "^0.1.4"
+node-gyp-build@^4.2.0:
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/node-gyp-build/-/node-gyp-build-4.2.3.tgz#ce6277f853835f718829efb47db20f3e4d9c4739"
+  integrity sha512-MN6ZpzmfNCRM+3t57PTJHgHyw/h4OWnZ6mR8P5j/uZtqQr46RRuDE/P+g3n0YR/AiYXeWixZZzaip77gdICfRg==
 
 normalize-url@^4.1.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-4.5.0.tgz#453354087e6ca96957bd8f5baf753f5982142129"
   integrity sha512-2s47yzUxdexf1OhyRi4Em83iQk0aPvwTddtFz4hnSSw9dCEsLEGf6SwIO8ss/19S9iBb5sJaOuTvTGDeZI00BQ==
 
-npm-bundled@^1.0.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/npm-bundled/-/npm-bundled-1.1.1.tgz#1edd570865a94cdb1bc8220775e29466c9fb234b"
-  integrity sha512-gqkfgGePhTpAEgUsGEgcq1rqPXA+tv/aVBlgEzfXwA1yiUJF7xtEt3CtVwOjNYQOVknDk0F20w58Fnm3EtG0fA==
-  dependencies:
-    npm-normalize-package-bin "^1.0.1"
-
-npm-normalize-package-bin@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/npm-normalize-package-bin/-/npm-normalize-package-bin-1.0.1.tgz#6e79a41f23fd235c0623218228da7d9c23b8f6e2"
-  integrity sha512-EPfafl6JL5/rU+ot6P3gRSCpPDW5VmIzX959Ob1+ySFUuuYHWHekXpwdUZcKP5C+DS4GEtdJluwBjnsNDl+fSA==
-
-npm-packlist@^1.1.6:
-  version "1.4.8"
-  resolved "https://registry.yarnpkg.com/npm-packlist/-/npm-packlist-1.4.8.tgz#56ee6cc135b9f98ad3d51c1c95da22bbb9b2ef3e"
-  integrity sha512-5+AZgwru5IevF5ZdnFglB5wNlHG1AOOuw28WhUq8/8emhBmLv6jX5by4WJCh7lW0uSYZYS6DXqIsyZVIXRZU9A==
-  dependencies:
-    ignore-walk "^3.0.1"
-    npm-bundled "^1.0.1"
-    npm-normalize-package-bin "^1.0.1"
-
 npm-run-path@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-3.1.0.tgz#7f91be317f6a466efed3c9f2980ad8a4ee8b0fa5"
@@ -3627,21 +3064,6 @@ npm-run-path@^3.0.0:
   dependencies:
     path-key "^3.0.0"
 
-npmlog@^4.0.1, npmlog@^4.0.2:
-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
-  integrity sha512-2uUqazuKlTaSI/dC8AzicUck7+IrEaOnN/e0jd3Xtt1KcGpwx30v50mL7oPyr/h9bL3E4aZccVwpwP+5W9Vjkg==
-  dependencies:
-    are-we-there-yet "~1.1.2"
-    console-control-strings "~1.1.0"
-    gauge "~2.7.3"
-    set-blocking "~2.0.0"
-
-number-is-nan@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
-  integrity sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=
-
 number-to-bn@1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/number-to-bn/-/number-to-bn-1.7.0.tgz#bb3623592f7e5f9e0030b1977bd41a0c53fe1ea0"
@@ -3730,19 +3152,11 @@ os-homedir@^1.0.0:
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
   integrity sha1-/7xJiDNuDoM94MFox+8VISGqf7M=
 
-os-tmpdir@^1.0.0, os-tmpdir@^1.0.1:
+os-tmpdir@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
   integrity sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=
 
-osenv@^0.1.4:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.5.tgz#85cdfafaeb28e8677f416e287592b5f3f49ea410"
-  integrity sha512-0CWcCECdMVc2Rw3U5w9ZjqX6ga6ubk1xDVKxtBQPK7wis/0F2r9T6k4ydGYhecl7YUBxBVxhL5oisPsNxAPe2g==
-  dependencies:
-    os-homedir "^1.0.0"
-    os-tmpdir "^1.0.0"
-
 p-cancelable@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-0.3.0.tgz#b9e123800bcebb7ac13a479be195b507b98d30fa"
@@ -3864,27 +3278,6 @@ pinkie@^2.0.0:
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
   integrity sha1-clVrgM+g1IqXToDnckjoDtT3+HA=
 
-prebuild-install@^5.3.0, prebuild-install@^5.3.3:
-  version "5.3.3"
-  resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-5.3.3.tgz#ef4052baac60d465f5ba6bf003c9c1de79b9da8e"
-  integrity sha512-GV+nsUXuPW2p8Zy7SarF/2W/oiK8bFQgJcncoJ0d7kRpekEA0ftChjfEaF9/Y+QJEc/wFR7RAEa8lYByuUIe2g==
-  dependencies:
-    detect-libc "^1.0.3"
-    expand-template "^2.0.3"
-    github-from-package "0.0.0"
-    minimist "^1.2.0"
-    mkdirp "^0.5.1"
-    napi-build-utils "^1.0.1"
-    node-abi "^2.7.0"
-    noop-logger "^0.1.1"
-    npmlog "^4.0.1"
-    pump "^3.0.0"
-    rc "^1.2.7"
-    simple-get "^3.0.3"
-    tar-fs "^2.0.0"
-    tunnel-agent "^0.6.0"
-    which-pm-runs "^1.0.0"
-
 precond@0.2:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/precond/-/precond-0.2.3.tgz#aa9591bcaa24923f1e0f4849d240f47efc1075ac"
@@ -4085,17 +3478,7 @@ raw-body@2.4.0:
     iconv-lite "0.4.24"
     unpipe "1.0.0"
 
-rc@^1.2.7:
-  version "1.2.8"
-  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
-  integrity sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==
-  dependencies:
-    deep-extend "^0.6.0"
-    ini "~1.3.0"
-    minimist "^1.2.0"
-    strip-json-comments "~2.0.1"
-
-"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.2.9, readable-stream@^2.3.0, readable-stream@^2.3.5, readable-stream@^2.3.6, readable-stream@~2.3.6:
+"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.2.9, readable-stream@^2.3.0, readable-stream@^2.3.5, readable-stream@^2.3.6, readable-stream@~2.3.6:
   version "2.3.7"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.7.tgz#1eca1cf711aef814c04f62252a36a62f6cb23b57"
   integrity sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==
@@ -4118,15 +3501,6 @@ readable-stream@^1.0.33:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
-readable-stream@^3.1.1, readable-stream@^3.4.0:
-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
-  integrity sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==
-  dependencies:
-    inherits "^2.0.3"
-    string_decoder "^1.1.1"
-    util-deprecate "^1.0.1"
-
 readable-stream@~1.0.15:
   version "1.0.34"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
@@ -4142,21 +3516,11 @@ regenerate@^1.2.1:
   resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.4.0.tgz#4a856ec4b56e4077c557589cae85e7a4c8869a11"
   integrity sha512-1G6jJVDWrt0rK99kBjvEtziZNCICAuvIPkSiUFIQxVP06RCVpq3dmDo2oi6ABpYaDYaTRr67BEhL8r1wgEZZKg==
 
-regenerator-runtime@^0.10.5:
-  version "0.10.5"
-  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.10.5.tgz#336c3efc1220adcedda2c9fab67b5a7955a33658"
-  integrity sha1-M2w+/BIgrc7dosn6tntaeVWjNlg=
-
 regenerator-runtime@^0.11.0:
   version "0.11.1"
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.11.1.tgz#be05ad7f9bf7d22e056f9726cee5017fbf19e2e9"
   integrity sha512-MguG95oij0fC3QV3URf4V2SDYGJhJnJGqvIIgdECeODCT98wSWDAJ94SSuVpYQUoTcGUIL6L4yNB7j1DFFHSBg==
 
-regenerator-runtime@^0.13.4:
-  version "0.13.5"
-  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.13.5.tgz#d878a1d094b4306d10b9096484b33ebd55e26697"
-  integrity sha512-ZS5w8CpKFinUzOwW3c83oPeVXoNsrLsaCoLtJvAClH135j/R77RuymhiSErhm2lKcwSCIpmvIWSbDkIfAqKQlA==
-
 regenerator-transform@^0.10.0:
   version "0.10.1"
   resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.10.1.tgz#1e4996837231da8b7f3cf4114d71b5691a0680dd"
@@ -4228,7 +3592,7 @@ request@^2.79.0, request@^2.85.0, request@^2.88.0:
     tunnel-agent "^0.6.0"
     uuid "^3.3.2"
 
-resolve@^1.8.1, resolve@~1.15.1:
+resolve@~1.15.1:
   version "1.15.1"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.15.1.tgz#27bdcdeffeaf2d6244b95bb0f9f4b4653451f3e8"
   integrity sha512-84oo6ZTtoTUpjgNEr5SJyzQhzL72gaRodsSfyxC/AXRvwu0Yse9H8eF9IpGo7b8YetZhlI6v7ZQ6bKBFV/6S7w==
@@ -4257,7 +3621,7 @@ resumer@~0.0.0:
   dependencies:
     through "~2.3.4"
 
-rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.3:
+rimraf@^2.5.4, rimraf@^2.6.3:
   version "2.7.1"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.7.1.tgz#35797f13a7fdadc566142c29d4f07ccad483e3ec"
   integrity sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==
@@ -4291,19 +3655,12 @@ rustbn.js@~0.2.0:
   resolved "https://registry.yarnpkg.com/rustbn.js/-/rustbn.js-0.2.0.tgz#8082cb886e707155fd1cb6f23bd591ab8d55d0ca"
   integrity sha512-4VlvkRUuCJvr2J6Y0ImW7NvTCriMi7ErOAqWk1y69vAdoNIzCF3yPmgeNzx+RQTLEDFq5sHfscn1MwHxP9hNfA==
 
-rxjs@^6.5.3:
-  version "6.5.4"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.5.4.tgz#e0777fe0d184cec7872df147f303572d414e211c"
-  integrity sha512-naMQXcgEo3csAEGvw/NydRA0fuS2nDZJiw1YUWFKU7aPPAPGZEsD4Iimit96qwCieH6y614MCLYwdkrWx7z/7Q==
-  dependencies:
-    tslib "^1.9.0"
-
 safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@^5.2.0, safe-buffer@~5.2.0:
+safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
   integrity sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==
@@ -4320,11 +3677,6 @@ safe-event-emitter@^1.0.1:
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
-sax@^1.2.4:
-  version "1.2.4"
-  resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
-  integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
-
 scrypt-js@2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/scrypt-js/-/scrypt-js-2.0.3.tgz#bb0040be03043da9a012a2cea9fc9f852cfc87d4"
@@ -4372,6 +3724,15 @@ secp256k1@^3.0.1:
     nan "^2.14.0"
     safe-buffer "^5.1.2"
 
+secp256k1@^4.0.0:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/secp256k1/-/secp256k1-4.0.2.tgz#15dd57d0f0b9fdb54ac1fa1694f40e5e9a54f4a1"
+  integrity sha512-UDar4sKvWAksIlfX3xIaQReADn+WFnHvbVujpcbr+9Sf/69odMwy2MUsz5CKLQgX9nsIyrjuxL2imVyoNHa3fg==
+  dependencies:
+    elliptic "^6.5.2"
+    node-addon-api "^2.0.0"
+    node-gyp-build "^4.2.0"
+
 seek-bzip@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/seek-bzip/-/seek-bzip-1.0.5.tgz#cfe917cb3d274bcffac792758af53173eb1fabdc"
@@ -4389,7 +3750,7 @@ semver@6.2.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.2.0.tgz#4d813d9590aaf8a9192693d6c85b9344de5901db"
   integrity sha512-jdFC1VdUGT/2Scgbimf7FSx9iJLXoqfglSF+gJeuNWVpiE37OIbc1jywR/GJyFdz3mnkz2/id0L0J/cr0izR5A==
 
-semver@^5.3.0, semver@^5.4.1, semver@^5.5.1:
+semver@^5.3.0:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
   integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==
@@ -4439,11 +3800,6 @@ servify@^0.1.12:
     request "^2.79.0"
     xhr "^2.3.3"
 
-set-blocking@~2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
-  integrity sha1-BF+XgtARrppoA93TgrJDkrPYkPc=
-
 set-immediate-shim@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
@@ -4472,13 +3828,6 @@ sha.js@^2.4.0, sha.js@^2.4.8:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
-sha3@^1.2.2:
-  version "1.2.6"
-  resolved "https://registry.yarnpkg.com/sha3/-/sha3-1.2.6.tgz#102aa3e47dc793e2357902c3cce8760822f9e905"
-  integrity sha512-KgLGmJGrmNB4JWVsAV11Yk6KbvsAiygWJc7t5IebWva/0NukNrjJqhtKhzy3Eiv2AKuGvhZZt7dt1mDo7HkoiQ==
-  dependencies:
-    nan "2.13.2"
-
 shebang-command@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-2.0.0.tgz#ccd0af4f8835fbdc265b82461aaf0c36663f34ea"
@@ -4491,7 +3840,7 @@ shebang-regex@^3.0.0:
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-3.0.0.tgz#ae16f1644d873ecad843b0307b143362d4c42172"
   integrity sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==
 
-signal-exit@^3.0.0, signal-exit@^3.0.2:
+signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
   integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
@@ -4510,15 +3859,6 @@ simple-get@^2.7.0:
     once "^1.3.1"
     simple-concat "^1.0.0"
 
-simple-get@^3.0.3:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-3.1.0.tgz#b45be062435e50d159540b576202ceec40b9c6b3"
-  integrity sha512-bCR6cP+aTdScaQCnQKbPKtJOKDp/hj9EDLJo3Nw4y1QksqaovlW/bnptB6/c1e+qmNIDHRK+oXFDdEqBT8WzUA==
-  dependencies:
-    decompress-response "^4.2.0"
-    once "^1.3.1"
-    simple-concat "^1.0.0"
-
 slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
@@ -4573,9 +3913,9 @@ sshpk@^1.7.0:
     tweetnacl "~0.14.0"
 
 ssri@^6.0.1:
-  version "6.0.1"
-  resolved "https://registry.yarnpkg.com/ssri/-/ssri-6.0.1.tgz#2a3c41b28dd45b62b63676ecb74001265ae9edd8"
-  integrity sha512-3Wge10hNcT1Kur4PDFwEieXSCMCJs/7WvSACcrMYrNp+b8kDL1/0wJch5Ni2WrtwEa2IO8OsVfeKIciKCDx/QA==
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/ssri/-/ssri-6.0.2.tgz#157939134f20464e7301ddba3e90ffa8f7728ac5"
+  integrity sha512-cepbSq/neFK7xB6A50KHN0xHDotYzq58wWCa5LeWqnPrHG8GzfEjO/4O8kpmcGW+oaxkvhEJCWgbgNk4/ZV93Q==
   dependencies:
     figgy-pudding "^3.5.1"
 
@@ -4602,23 +3942,6 @@ strict-uri-encode@^1.0.0:
   resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz#279b225df1d582b1f54e65addd4352e18faa0713"
   integrity sha1-J5siXfHVgrH1TmWt3UNS4Y+qBxM=
 
-string-width@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
-  integrity sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=
-  dependencies:
-    code-point-at "^1.0.0"
-    is-fullwidth-code-point "^1.0.0"
-    strip-ansi "^3.0.0"
-
-"string-width@^1.0.2 || 2":
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
-  integrity sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==
-  dependencies:
-    is-fullwidth-code-point "^2.0.0"
-    strip-ansi "^4.0.0"
-
 string-width@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-3.1.0.tgz#22767be21b62af1081574306f69ac51b62203961"
@@ -4653,13 +3976,6 @@ string.prototype.trimright@^2.1.1:
     define-properties "^1.1.3"
     function-bind "^1.1.1"
 
-string_decoder@^1.1.1:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.3.0.tgz#42f114594a46cf1a8e30b0a84f56c78c3edac21e"
-  integrity sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==
-  dependencies:
-    safe-buffer "~5.2.0"
-
 string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
@@ -4672,20 +3988,13 @@ string_decoder@~1.1.1:
   dependencies:
     safe-buffer "~5.1.0"
 
-strip-ansi@^3.0.0, strip-ansi@^3.0.1:
+strip-ansi@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
   integrity sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=
   dependencies:
     ansi-regex "^2.0.0"
 
-strip-ansi@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-4.0.0.tgz#a8479022eb1ac368a871389b635262c505ee368f"
-  integrity sha1-qEeQIusaw2iocTibY1JixQXuNo8=
-  dependencies:
-    ansi-regex "^3.0.0"
-
 strip-ansi@^5.0.0, strip-ansi@^5.1.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-5.2.0.tgz#8c9a536feb6afc962bdfa5b104a5091c1ad9c0ae"
@@ -4712,11 +4021,6 @@ strip-hex-prefix@1.0.0:
   dependencies:
     is-hex-prefixed "1.0.0"
 
-strip-json-comments@~2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
-  integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
-
 supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
@@ -4768,16 +4072,6 @@ tape@^4.6.3:
     string.prototype.trim "~1.2.1"
     through "~2.3.8"
 
-tar-fs@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/tar-fs/-/tar-fs-2.0.0.tgz#677700fc0c8b337a78bee3623fdc235f21d7afad"
-  integrity sha512-vaY0obB6Om/fso8a8vakQBzwholQ7v5+uy+tF3Ozvxv1KNezmVQAiWtcNmMHFSFPqL3dJA8ha6gdtFbfX9mcxA==
-  dependencies:
-    chownr "^1.1.1"
-    mkdirp "^0.5.1"
-    pump "^3.0.0"
-    tar-stream "^2.0.0"
-
 tar-stream@^1.5.2:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.6.2.tgz#8ea55dab37972253d9a9af90fdcd559ae435c555"
@@ -4791,18 +4085,7 @@ tar-stream@^1.5.2:
     to-buffer "^1.1.1"
     xtend "^4.0.0"
 
-tar-stream@^2.0.0:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-2.1.2.tgz#6d5ef1a7e5783a95ff70b69b97455a5968dc1325"
-  integrity sha512-UaF6FoJ32WqALZGOIAApXx+OdxhekNMChu6axLJR85zMMjXKWFGjbIRe+J6P4UnRGg9rAwWvbTT0oI7hD/Un7Q==
-  dependencies:
-    bl "^4.0.1"
-    end-of-stream "^1.4.1"
-    fs-constants "^1.0.0"
-    inherits "^2.0.3"
-    readable-stream "^3.1.1"
-
-tar@^4.0.2, tar@^4.4.2, tar@^4.4.6, tar@^4.4.8:
+tar@^4.0.2, tar@^4.4.6, tar@^4.4.8:
   version "4.4.13"
   resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.13.tgz#43b364bc52888d555298637b10d60790254ab525"
   integrity sha512-w2VwSrBoHa5BsSyH+KxEqeQBAllHhccyMFVHtGtdMpF4W7IRWfZjFiQceJPChOeTsSDVUpER2T8FA93pr0L+QA==
@@ -4843,11 +4126,6 @@ to-fast-properties@^1.0.3:
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
   integrity sha1-uDVx+k2MJbguIxsG46MFXeTKGkc=
 
-to-fast-properties@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-2.0.0.tgz#dc5e698cbd079265bc73e0377681a4e4e83f616e"
-  integrity sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=
-
 to-readable-stream@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/to-readable-stream/-/to-readable-stream-1.0.0.tgz#ce0aa0c2f3df6adf852efb404a783e77c0475771"
@@ -4871,11 +4149,6 @@ trim-right@^1.0.1:
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
   integrity sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=
 
-tslib@^1.9.0:
-  version "1.11.1"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.11.1.tgz#eb15d128827fbee2841549e171f45ed338ac7e35"
-  integrity sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA==
-
 tunnel-agent@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
@@ -4883,21 +4156,11 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
-tweetnacl-util@^0.15.0:
-  version "0.15.1"
-  resolved "https://registry.yarnpkg.com/tweetnacl-util/-/tweetnacl-util-0.15.1.tgz#b80fcdb5c97bcc508be18c44a4be50f022eea00b"
-  integrity sha512-RKJBIj8lySrShN4w6i/BonWp2Z/uxwC3h4y7xsRrpP59ZboCd0GpEVsOnMDYLMmKBpYhb5TgHzZXy7wTfYFBRw==
-
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
   integrity sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=
 
-tweetnacl@^1.0.0:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-1.0.3.tgz#ac0af71680458d8a6378d0d0d050ab1407d35596"
-  integrity sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw==
-
 type-is@~1.6.17, type-is@~1.6.18:
   version "1.6.18"
   resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.18.tgz#4e552cd05df09467dcbc4ef739de89f2cf37c131"
@@ -5006,21 +4269,12 @@ url-to-options@^1.0.1:
   resolved "https://registry.yarnpkg.com/url-to-options/-/url-to-options-1.0.1.tgz#1505a03a289a48cbd7a434efbaeec5055f5633a9"
   integrity sha1-FQWgOiiaSMvXpDTvuu7FBV9WM6k=
 
-usb@^1.6.0, usb@^1.6.2:
-  version "1.6.2"
-  resolved "https://registry.yarnpkg.com/usb/-/usb-1.6.2.tgz#4ed7f0d8631c70192b33635f6a4e700d9e6bfe62"
-  integrity sha512-KcovLXRQuH63iEtnqXyDQGOi5dXHpLM5lZBIUsqSJQToua8nL2sVCieQTkzQBfLe5mCuvk40MgKciI61lgevWw==
-  dependencies:
-    bindings "^1.4.0"
-    nan "2.13.2"
-    prebuild-install "^5.3.3"
-
 utf8@3.0.0, utf8@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/utf8/-/utf8-3.0.0.tgz#f052eed1364d696e769ef058b183df88c87f69d1"
   integrity sha512-E8VjFIQ/TyQgp+TZfS6l8yp/xWppSAHzidGiRrqe4bK4XP9pTRyKFgGJpO3SN7zdX4DeomTrwaseCHovfpFcqQ==
 
-util-deprecate@^1.0.1, util-deprecate@~1.0.1:
+util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
   integrity sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=
@@ -5227,34 +4481,6 @@ web3-net@1.2.1:
     web3-core-method "1.2.1"
     web3-utils "1.2.1"
 
-web3-provider-engine@^15.0.4:
-  version "15.0.6"
-  resolved "https://registry.yarnpkg.com/web3-provider-engine/-/web3-provider-engine-15.0.6.tgz#bb64d49d0718bb6a12f146bdd542d5f2f8fa4e48"
-  integrity sha512-KdIHmRmB7VG6HeSu4hlB+Iypsbv/dAbNV/UWBDxsTwLJuuTSobmtowOq5BEsegXtjWhSSzSi9O0Ci/DVG0kB1g==
-  dependencies:
-    async "^2.5.0"
-    backoff "^2.5.0"
-    clone "^2.0.0"
-    cross-fetch "^2.1.0"
-    eth-block-tracker "^4.4.2"
-    eth-json-rpc-errors "^2.0.2"
-    eth-json-rpc-filters "^4.1.1"
-    eth-json-rpc-infura "^4.0.1"
-    eth-json-rpc-middleware "^4.1.5"
-    eth-sig-util "^1.4.2"
-    ethereumjs-block "^1.2.2"
-    ethereumjs-tx "^1.2.0"
-    ethereumjs-util "^5.1.5"
-    ethereumjs-vm "^2.3.4"
-    json-stable-stringify "^1.0.1"
-    promise-to-callback "^1.0.0"
-    readable-stream "^2.2.9"
-    request "^2.85.0"
-    semaphore "^1.0.3"
-    ws "^5.1.1"
-    xhr "^2.2.0"
-    xtend "^4.0.1"
-
 "web3-provider-engine@git+https://github.com/trufflesuite/provider-engine.git#web3-one":
   version "14.0.6"
   resolved "git+https://github.com/trufflesuite/provider-engine.git#3538c60bc4836b73ccae1ac3f64c8fed8ef19c1a"
@@ -5357,11 +4583,6 @@ whatwg-fetch@2.0.4:
   resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz#dde6a5df315f9d39991aa17621853d720b85566f"
   integrity sha512-dcQ1GWpOD/eEQ97k66aiEVpNnapVj90/+R+SXTPYGHpYBBypfKJEQjLrvMZ7YXbKm21gXd4NcuxUTjiv1YtLng==
 
-which-pm-runs@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/which-pm-runs/-/which-pm-runs-1.0.0.tgz#670b3afbc552e0b55df6b7780ca74615f23ad1cb"
-  integrity sha1-Zws6+8VS4LVd9rd4DKdGFfI60cs=
-
 which@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
@@ -5376,13 +4597,6 @@ which@^2.0.1:
   dependencies:
     isexe "^2.0.0"
 
-wide-align@^1.1.0:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.3.tgz#ae074e6bdc0c14a431e804e624549c633b000457"
-  integrity sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==
-  dependencies:
-    string-width "^1.0.2 || 2"
-
 wrap-ansi@^5.0.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-5.1.0.tgz#1fd1f67235d5b6d0fee781056001bfb694c03b09"