diff --git a/package-lock.json b/package-lock.json
index 426c68d..0e25632 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,8 +16,8 @@
       "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
       "dev": true,
       "requires": {
-        "co": "4.6.0",
-        "json-stable-stringify": "1.0.1"
+        "co": "^4.6.0",
+        "json-stable-stringify": "^1.0.1"
       }
     },
     "ansi-regex": {
@@ -44,8 +44,8 @@
       "integrity": "sha1-u13KOCu5TwXhUZQ3PRb9O6HKEQ0=",
       "dev": true,
       "requires": {
-        "delegates": "1.0.0",
-        "readable-stream": "2.3.3"
+        "delegates": "^1.0.0",
+        "readable-stream": "^2.0.6"
       }
     },
     "argparse": {
@@ -54,7 +54,7 @@
       "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
       "dev": true,
       "requires": {
-        "sprintf-js": "1.0.3"
+        "sprintf-js": "~1.0.2"
       }
     },
     "array-find-index": {
@@ -82,12 +82,9 @@
       "dev": true
     },
     "async": {
-      "version": "2.5.0",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.5.0.tgz",
-      "integrity": "sha512-e+lJAJeNWuPCNyxZKOBdaJGyLGHugXVQtrAwtuAe2vhxTYxFTKE73p8JuTmdH0qdQZtDvI4dhJwjZc5zsfIsYw==",
-      "requires": {
-        "lodash": "4.17.4"
-      }
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.0.0.tgz",
+      "integrity": "sha512-LNZ6JSpKraIia6VZKKbKxmX6nWIdfsG7WqrOvKpCuDjH7BnGyQRFMTSXEe8to2WF/rqoAKgZvj+L5nnxe0suAg=="
     },
     "asynckit": {
       "version": "0.4.0",
@@ -120,7 +117,7 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "tweetnacl": "0.14.5"
+        "tweetnacl": "^0.14.3"
       }
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     "block-stream": {
@@ -129,7 +126,7 @@
       "integrity": "sha1-E+v+d4oDIFz+A3UUgeu0szAMEmo=",
       "dev": true,
       "requires": {
-        "inherits": "2.0.3"
+        "inherits": "~2.0.0"
       }
     },
     "body-parser": {
@@ -139,15 +136,15 @@
       "dev": true,
       "requires": {
         "bytes": "2.2.0",
-        "content-type": "1.0.2",
-        "debug": "2.2.0",
-        "depd": "1.1.1",
-        "http-errors": "1.3.1",
+        "content-type": "~1.0.1",
+        "debug": "~2.2.0",
+        "depd": "~1.1.0",
+        "http-errors": "~1.3.1",
         "iconv-lite": "0.4.13",
-        "on-finished": "2.3.0",
+        "on-finished": "~2.3.0",
         "qs": "5.2.0",
-        "raw-body": "2.1.7",
-        "type-is": "1.6.15"
+        "raw-body": "~2.1.5",
+        "type-is": "~1.6.10"
       },
       "dependencies": {
         "iconv-lite": {
@@ -170,7 +167,7 @@
       "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
       "dev": true,
       "requires": {
-        "hoek": "2.16.3"
+        "hoek": "2.x.x"
       }
     },
     "brace-expansion": {
@@ -179,7 +176,7 @@
       "integrity": "sha1-wHshHHyVLsH479Uad+8NHTmQopI=",
       "dev": true,
       "requires": {
-        "balanced-match": "1.0.0",
+        "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
       }
     },
@@ -213,8 +210,8 @@
       "integrity": "sha1-MIvur/3ygRkFHvodkyITyRuPkuc=",
       "dev": true,
       "requires": {
-        "camelcase": "2.1.1",
-        "map-obj": "1.0.1"
+        "camelcase": "^2.0.0",
+        "map-obj": "^1.0.0"
       }
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     "caseless": {
@@ -229,12 +226,12 @@
       "integrity": "sha1-ZuISeebzxkFf+CMYeCJ5AOIXGzk=",
       "dev": true,
       "requires": {
-        "assertion-error": "1.0.2",
-        "check-error": "1.0.2",
-        "deep-eql": "2.0.2",
-        "get-func-name": "2.0.0",
-        "pathval": "1.1.0",
-        "type-detect": "4.0.3"
+        "assertion-error": "^1.0.1",
+        "check-error": "^1.0.1",
+        "deep-eql": "^2.0.1",
+        "get-func-name": "^2.0.0",
+        "pathval": "^1.0.0",
+        "type-detect": "^4.0.0"
       }
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     "chalk": {
@@ -243,11 +240,11 @@
       "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
       "dev": true,
       "requires": {
-        "ansi-styles": "2.2.1",
-        "escape-string-regexp": "1.0.5",
-        "has-ansi": "2.0.0",
-        "strip-ansi": "3.0.1",
-        "supports-color": "2.0.0"
+        "ansi-styles": "^2.2.1",
+        "escape-string-regexp": "^1.0.2",
+        "has-ansi": "^2.0.0",
+        "strip-ansi": "^3.0.0",
+        "supports-color": "^2.0.0"
       }
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@@ -286,7 +283,7 @@
       "integrity": "sha1-k4NwpXtKUd6ix3wV1cX9+JUWQAk=",
       "dev": true,
       "requires": {
-        "delayed-stream": "1.0.0"
+        "delayed-stream": "~1.0.0"
       }
     },
     "commander": {
@@ -295,7 +292,7 @@
       "integrity": "sha1-nJkJQXbhIkDLItbFFGCYQA/g99Q=",
       "dev": true,
       "requires": {
-        "graceful-readlink": "1.0.1"
+        "graceful-readlink": ">= 1.0.0"
       }
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     "concat-map": {
@@ -328,7 +325,7 @@
       "integrity": "sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=",
       "dev": true,
       "requires": {
-        "boom": "2.10.1"
+        "boom": "2.x.x"
       }
     },
     "currently-unhandled": {
@@ -337,7 +334,7 @@
       "integrity": "sha1-mI3zP+qxke95mmE2nddsF635V+o=",
       "dev": true,
       "requires": {
-        "array-find-index": "1.0.2"
+        "array-find-index": "^1.0.1"
       }
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     "dashdash": {
@@ -346,7 +343,7 @@
       "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
       "dev": true,
       "requires": {
-        "assert-plus": "1.0.0"
+        "assert-plus": "^1.0.0"
       },
       "dependencies": {
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@@ -363,8 +360,8 @@
       "integrity": "sha1-nxJLZ1lMk3/3BpMuSmQsyo27/uk=",
       "dev": true,
       "requires": {
-        "get-stdin": "4.0.1",
-        "meow": "3.7.0"
+        "get-stdin": "^4.0.1",
+        "meow": "^3.3.0"
       }
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     "debug": {
@@ -388,7 +385,7 @@
       "integrity": "sha1-sbrAblbwp2d3aG1Qyf63XC7XZ5o=",
       "dev": true,
       "requires": {
-        "type-detect": "3.0.0"
+        "type-detect": "^3.0.0"
       },
       "dependencies": {
         "type-detect": {
@@ -430,7 +427,7 @@
       "dev": true,
       "optional": true,
       "requires": {
-        "jsbn": "0.1.1"
+        "jsbn": "~0.1.0"
       }
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     "ee-first": {
@@ -445,7 +442,7 @@
       "integrity": "sha1-+FWobOYa3E6GIcPNoh56dhLDqNw=",
       "dev": true,
       "requires": {
-        "is-arrayish": "0.2.1"
+        "is-arrayish": "^0.2.1"
       }
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     "escape-string-regexp": {
@@ -490,7 +487,7 @@
       "integrity": "sha1-TkkvjQTftviQA1B/btvy1QHnxvQ=",
       "dev": true,
       "requires": {
-        "websocket-driver": "0.6.5"
+        "websocket-driver": ">=0.5.1"
       }
     },
     "find-up": {
@@ -499,8 +496,8 @@
       "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
       "dev": true,
       "requires": {
-        "path-exists": "2.1.0",
-        "pinkie-promise": "2.0.1"
+        "path-exists": "^2.0.0",
+        "pinkie-promise": "^2.0.0"
       }
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@@ -509,7 +506,7 @@
       "integrity": "sha1-N5MKpdgWt3fANEXhlmzGeQpMCxY=",
       "dev": true,
       "requires": {
-        "glob": "5.0.15"
+        "glob": "~5.0.0"
       },
       "dependencies": {
         "glob": {
@@ -518,11 +515,11 @@
           "integrity": "sha1-G8k2ueAvSmA/zCIuz3Yz0wuLk7E=",
           "dev": true,
           "requires": {
-            "inflight": "1.0.6",
-            "inherits": "2.0.3",
-            "minimatch": "3.0.4",
-            "once": "1.4.0",
-            "path-is-absolute": "1.0.1"
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "2 || 3",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
           }
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       }
@@ -539,9 +536,9 @@
       "integrity": "sha1-M8GDrPGTJ27KqYFDpp6Uv+4XUNE=",
       "dev": true,
       "requires": {
-        "asynckit": "0.4.0",
-        "combined-stream": "1.0.5",
-        "mime-types": "2.1.16"
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.5",
+        "mime-types": "^2.1.12"
       }
     },
     "fs.realpath": {
@@ -556,10 +553,10 @@
       "integrity": "sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=",
       "dev": true,
       "requires": {
-        "graceful-fs": "4.1.11",
-        "inherits": "2.0.3",
-        "mkdirp": "0.5.1",
-        "rimraf": "2.2.8"
+        "graceful-fs": "^4.1.2",
+        "inherits": "~2.0.0",
+        "mkdirp": ">=0.5 0",
+        "rimraf": "2"
       }
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     "gauge": {
@@ -568,14 +565,14 @@
       "integrity": "sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=",
       "dev": true,
       "requires": {
-        "aproba": "1.1.2",
-        "console-control-strings": "1.1.0",
-        "has-unicode": "2.0.1",
-        "object-assign": "4.1.1",
-        "signal-exit": "3.0.2",
-        "string-width": "1.0.2",
-        "strip-ansi": "3.0.1",
-        "wide-align": "1.1.2"
+        "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"
       }
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     "gaze": {
@@ -584,7 +581,7 @@
       "integrity": "sha1-hHIkZ3rbiHDWeSV+0ziP22HkAQU=",
       "dev": true,
       "requires": {
-        "globule": "1.2.0"
+        "globule": "^1.0.0"
       }
     },
     "get-func-name": {
@@ -611,7 +608,7 @@
       "integrity": "sha1-Xv+OPmhNVprkyysSgmBOi6YhSfo=",
       "dev": true,
       "requires": {
-        "assert-plus": "1.0.0"
+        "assert-plus": "^1.0.0"
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@@ -628,12 +625,12 @@
       "integrity": "sha1-IRuvr0nlJbjNkyYNFKsTYVKz9Xo=",
       "dev": true,
       "requires": {
-        "fs.realpath": "1.0.0",
-        "inflight": "1.0.6",
-        "inherits": "2.0.3",
-        "minimatch": "3.0.4",
-        "once": "1.4.0",
-        "path-is-absolute": "1.0.1"
+        "fs.realpath": "^1.0.0",
+        "inflight": "^1.0.4",
+        "inherits": "2",
+        "minimatch": "^3.0.2",
+        "once": "^1.3.0",
+        "path-is-absolute": "^1.0.0"
       }
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     "globule": {
@@ -642,9 +639,9 @@
       "integrity": "sha1-HcScaCLdnoovoAuiopUAboZkvQk=",
       "dev": true,
       "requires": {
-        "glob": "7.1.2",
-        "lodash": "4.17.4",
-        "minimatch": "3.0.4"
+        "glob": "~7.1.1",
+        "lodash": "~4.17.4",
+        "minimatch": "~3.0.2"
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@@ -653,12 +650,12 @@
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           "dev": true,
           "requires": {
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-            "inflight": "1.0.6",
-            "inherits": "2.0.3",
-            "minimatch": "3.0.4",
-            "once": "1.4.0",
-            "path-is-absolute": "1.0.1"
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
           }
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@@ -687,22 +684,22 @@
       "integrity": "sha1-6HeHZOlEsY8yuw8QuQeEdcnftWs=",
       "dev": true,
       "requires": {
-        "coffee-script": "1.10.0",
-        "dateformat": "1.0.12",
-        "eventemitter2": "0.4.14",
-        "exit": "0.1.2",
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-        "iconv-lite": "0.4.18",
-        "js-yaml": "3.5.5",
-        "minimatch": "3.0.4",
-        "nopt": "3.0.6",
-        "path-is-absolute": "1.0.1",
-        "rimraf": "2.2.8"
+        "coffee-script": "~1.10.0",
+        "dateformat": "~1.0.12",
+        "eventemitter2": "~0.4.13",
+        "exit": "~0.1.1",
+        "findup-sync": "~0.3.0",
+        "glob": "~7.0.0",
+        "grunt-cli": "~1.2.0",
+        "grunt-known-options": "~1.1.0",
+        "grunt-legacy-log": "~1.0.0",
+        "grunt-legacy-util": "~1.0.0",
+        "iconv-lite": "~0.4.13",
+        "js-yaml": "~3.5.2",
+        "minimatch": "~3.0.0",
+        "nopt": "~3.0.6",
+        "path-is-absolute": "~1.0.0",
+        "rimraf": "~2.2.8"
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@@ -711,10 +708,10 @@
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-            "grunt-known-options": "1.1.0",
-            "nopt": "3.0.6",
-            "resolve": "1.1.7"
+            "findup-sync": "~0.3.0",
+            "grunt-known-options": "~1.1.0",
+            "nopt": "~3.0.6",
+            "resolve": "~1.1.0"
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@@ -725,10 +722,10 @@
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       "dev": true,
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-        "async": "1.5.2",
-        "gaze": "1.1.2",
-        "lodash": "3.10.1",
-        "tiny-lr": "0.2.1"
+        "async": "^1.5.0",
+        "gaze": "^1.0.0",
+        "lodash": "^3.10.1",
+        "tiny-lr": "^0.2.1"
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@@ -757,11 +754,11 @@
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-        "grunt-legacy-log-utils": "1.0.0",
-        "hooker": "0.2.3",
-        "lodash": "3.10.1",
-        "underscore.string": "3.2.3"
+        "colors": "~1.1.2",
+        "grunt-legacy-log-utils": "~1.0.0",
+        "hooker": "~0.2.3",
+        "lodash": "~3.10.1",
+        "underscore.string": "~3.2.3"
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@@ -778,8 +775,8 @@
       "integrity": "sha1-p7ji0Ps1taUPSvmG/BEnSevJbz0=",
       "dev": true,
       "requires": {
-        "chalk": "1.1.3",
-        "lodash": "4.3.0"
+        "chalk": "~1.1.1",
+        "lodash": "~4.3.0"
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@@ -796,13 +793,13 @@
       "integrity": "sha1-OGqnjcbtUJhsKxiVcmWxtIq7m4Y=",
       "dev": true,
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-        "async": "1.5.2",
-        "exit": "0.1.2",
-        "getobject": "0.1.0",
-        "hooker": "0.2.3",
-        "lodash": "4.3.0",
-        "underscore.string": "3.2.3",
-        "which": "1.2.14"
+        "async": "~1.5.2",
+        "exit": "~0.1.1",
+        "getobject": "~0.1.0",
+        "hooker": "~0.2.3",
+        "lodash": "~4.3.0",
+        "underscore.string": "~3.2.3",
+        "which": "~1.2.1"
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@@ -825,8 +822,8 @@
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       "dev": true,
       "requires": {
-        "hooker": "0.2.3",
-        "mkdirp": "0.5.1"
+        "hooker": "^0.2.3",
+        "mkdirp": "^0.5.0"
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     "grunt-node-gyp": {
@@ -835,7 +832,7 @@
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       "dev": true,
       "requires": {
-        "node-gyp": "3.6.2"
+        "node-gyp": "3 || 2 || 1"
       }
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     "har-schema": {
@@ -850,8 +847,8 @@
       "integrity": "sha1-M0gdDxu/9gDdID11gSpqX7oALio=",
       "dev": true,
       "requires": {
-        "ajv": "4.11.8",
-        "har-schema": "1.0.5"
+        "ajv": "^4.9.1",
+        "har-schema": "^1.0.5"
       }
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     "has-ansi": {
@@ -860,7 +857,7 @@
       "integrity": "sha1-NPUEnOHs3ysGSa8+8k5F7TVBbZE=",
       "dev": true,
       "requires": {
-        "ansi-regex": "2.1.1"
+        "ansi-regex": "^2.0.0"
       }
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     "has-flag": {
@@ -881,10 +878,10 @@
       "integrity": "sha1-B4REvXwWQLD+VA0sm3PVlnjo4cQ=",
       "dev": true,
       "requires": {
-        "boom": "2.10.1",
-        "cryptiles": "2.0.5",
-        "hoek": "2.16.3",
-        "sntp": "1.0.9"
+        "boom": "2.x.x",
+        "cryptiles": "2.x.x",
+        "hoek": "2.x.x",
+        "sntp": "1.x.x"
       }
     },
     "hoek": {
@@ -911,8 +908,8 @@
       "integrity": "sha1-GX4izevUGYWF6GlO9nhhl7ke2UI=",
       "dev": true,
       "requires": {
-        "inherits": "2.0.3",
-        "statuses": "1.3.1"
+        "inherits": "~2.0.1",
+        "statuses": "1"
       }
     },
     "http-signature": {
@@ -921,9 +918,9 @@
       "integrity": "sha1-33LiZwZs0Kxn+3at+OE0qPvPkb8=",
       "dev": true,
       "requires": {
-        "assert-plus": "0.2.0",
-        "jsprim": "1.4.1",
-        "sshpk": "1.13.1"
+        "assert-plus": "^0.2.0",
+        "jsprim": "^1.2.2",
+        "sshpk": "^1.7.0"
       }
     },
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@@ -938,7 +935,7 @@
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       "dev": true,
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+        "repeating": "^2.0.0"
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@@ -947,8 +944,8 @@
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       "dev": true,
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-        "once": "1.4.0",
-        "wrappy": "1.0.2"
+        "once": "^1.3.0",
+        "wrappy": "1"
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@@ -969,7 +966,7 @@
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       "dev": true,
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-        "builtin-modules": "1.1.1"
+        "builtin-modules": "^1.0.0"
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@@ -978,7 +975,7 @@
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       "dev": true,
       "requires": {
-        "number-is-nan": "1.0.1"
+        "number-is-nan": "^1.0.0"
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@@ -987,7 +984,7 @@
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       "dev": true,
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-        "number-is-nan": "1.0.1"
+        "number-is-nan": "^1.0.0"
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@@ -1026,8 +1023,8 @@
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       "dev": true,
       "requires": {
-        "argparse": "1.0.9",
-        "esprima": "2.7.3"
+        "argparse": "^1.0.2",
+        "esprima": "^2.6.0"
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@@ -1049,7 +1046,7 @@
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       "dev": true,
       "requires": {
-        "jsonify": "0.0.0"
+        "jsonify": "~0.0.0"
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@@ -1102,17 +1099,18 @@
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-        "parse-json": "2.2.0",
-        "pify": "2.3.0",
-        "pinkie-promise": "2.0.1",
-        "strip-bom": "2.0.0"
+        "graceful-fs": "^4.1.2",
+        "parse-json": "^2.2.0",
+        "pify": "^2.0.0",
+        "pinkie-promise": "^2.0.0",
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       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
-      "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4="
+      "integrity": "sha1-eCA6TRwyiuHYbcpkYONptX9AVa4=",
+      "dev": true
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@@ -1120,8 +1118,8 @@
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       "dev": true,
       "requires": {
-        "lodash._basecopy": "3.0.1",
-        "lodash.keys": "3.1.2"
+        "lodash._basecopy": "^3.0.0",
+        "lodash.keys": "^3.0.0"
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@@ -1154,9 +1152,9 @@
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       "dev": true,
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-        "lodash._baseassign": "3.2.0",
-        "lodash._basecreate": "3.0.3",
-        "lodash._isiterateecall": "3.0.9"
+        "lodash._baseassign": "^3.0.0",
+        "lodash._basecreate": "^3.0.0",
+        "lodash._isiterateecall": "^3.0.0"
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@@ -1177,9 +1175,9 @@
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-        "lodash._getnative": "3.9.1",
-        "lodash.isarguments": "3.1.0",
-        "lodash.isarray": "3.0.4"
+        "lodash._getnative": "^3.0.0",
+        "lodash.isarguments": "^3.0.0",
+        "lodash.isarray": "^3.0.0"
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@@ -1188,8 +1186,8 @@
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       "dev": true,
       "requires": {
-        "currently-unhandled": "0.4.1",
-        "signal-exit": "3.0.2"
+        "currently-unhandled": "^0.4.1",
+        "signal-exit": "^3.0.0"
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@@ -1210,16 +1208,16 @@
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       "dev": true,
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-        "minimist": "1.2.0",
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-        "read-pkg-up": "1.0.1",
-        "redent": "1.0.0",
-        "trim-newlines": "1.0.0"
+        "camelcase-keys": "^2.0.0",
+        "decamelize": "^1.1.2",
+        "loud-rejection": "^1.0.0",
+        "map-obj": "^1.0.1",
+        "minimist": "^1.1.3",
+        "normalize-package-data": "^2.3.4",
+        "object-assign": "^4.0.1",
+        "read-pkg-up": "^1.0.1",
+        "redent": "^1.0.0",
+        "trim-newlines": "^1.0.0"
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@@ -1234,7 +1232,7 @@
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       "dev": true,
       "requires": {
-        "mime-db": "1.29.0"
+        "mime-db": "~1.29.0"
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@@ -1243,7 +1241,7 @@
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       "dev": true,
       "requires": {
-        "brace-expansion": "1.1.8"
+        "brace-expansion": "^1.1.7"
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@@ -1303,12 +1301,12 @@
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           "dev": true,
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-            "inflight": "1.0.6",
-            "inherits": "2.0.3",
-            "minimatch": "3.0.4",
-            "once": "1.4.0",
-            "path-is-absolute": "1.0.1"
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.2",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
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@@ -1323,7 +1321,7 @@
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           "dev": true,
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-            "has-flag": "1.0.0"
+            "has-flag": "^1.0.0"
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@@ -1345,19 +1343,19 @@
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-        "graceful-fs": "4.1.11",
-        "minimatch": "3.0.4",
-        "mkdirp": "0.5.1",
-        "nopt": "3.0.6",
-        "npmlog": "4.1.2",
-        "osenv": "0.1.4",
-        "request": "2.81.0",
-        "rimraf": "2.2.8",
-        "semver": "5.3.0",
-        "tar": "2.2.1",
-        "which": "1.2.14"
+        "fstream": "^1.0.0",
+        "glob": "^7.0.3",
+        "graceful-fs": "^4.1.2",
+        "minimatch": "^3.0.2",
+        "mkdirp": "^0.5.0",
+        "nopt": "2 || 3",
+        "npmlog": "0 || 1 || 2 || 3 || 4",
+        "osenv": "0",
+        "request": "2",
+        "rimraf": "2",
+        "semver": "~5.3.0",
+        "tar": "^2.0.0",
+        "which": "1"
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@@ -1374,7 +1372,7 @@
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       "dev": true,
       "requires": {
-        "abbrev": "1.1.0"
+        "abbrev": "1"
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@@ -1383,10 +1381,10 @@
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       "dev": true,
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-        "is-builtin-module": "1.0.0",
-        "semver": "5.4.1",
-        "validate-npm-package-license": "3.0.1"
+        "hosted-git-info": "^2.1.4",
+        "is-builtin-module": "^1.0.0",
+        "semver": "2 || 3 || 4 || 5",
+        "validate-npm-package-license": "^3.0.1"
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@@ -1395,10 +1393,10 @@
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       "dev": true,
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-        "console-control-strings": "1.1.0",
-        "gauge": "2.7.4",
-        "set-blocking": "2.0.0"
+        "are-we-there-yet": "~1.1.2",
+        "console-control-strings": "~1.1.0",
+        "gauge": "~2.7.3",
+        "set-blocking": "~2.0.0"
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@@ -1434,7 +1432,7 @@
       "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
       "dev": true,
       "requires": {
-        "wrappy": "1.0.2"
+        "wrappy": "1"
       }
     },
     "os-homedir": {
@@ -1455,8 +1453,8 @@
       "integrity": "sha1-Qv5tWVPfBsgGS+bxdsPQWqqjRkQ=",
       "dev": true,
       "requires": {
-        "os-homedir": "1.0.2",
-        "os-tmpdir": "1.0.2"
+        "os-homedir": "^1.0.0",
+        "os-tmpdir": "^1.0.0"
       }
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@@ -1465,7 +1463,7 @@
       "integrity": "sha1-9ID0BDTvgHQfhGkJn43qGPVaTck=",
       "dev": true,
       "requires": {
-        "error-ex": "1.3.1"
+        "error-ex": "^1.2.0"
       }
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@@ -1480,7 +1478,7 @@
       "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
       "dev": true,
       "requires": {
-        "pinkie-promise": "2.0.1"
+        "pinkie-promise": "^2.0.0"
       }
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     "path-is-absolute": {
@@ -1495,9 +1493,9 @@
       "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
       "dev": true,
       "requires": {
-        "graceful-fs": "4.1.11",
-        "pify": "2.3.0",
-        "pinkie-promise": "2.0.1"
+        "graceful-fs": "^4.1.2",
+        "pify": "^2.0.0",
+        "pinkie-promise": "^2.0.0"
       }
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@@ -1530,7 +1528,7 @@
       "integrity": "sha1-ITXW36ejWMBprJsXh3YogihFD/o=",
       "dev": true,
       "requires": {
-        "pinkie": "2.0.4"
+        "pinkie": "^2.0.0"
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@@ -1588,9 +1586,9 @@
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       "dev": true,
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-        "load-json-file": "1.1.0",
-        "normalize-package-data": "2.4.0",
-        "path-type": "1.1.0"
+        "load-json-file": "^1.0.0",
+        "normalize-package-data": "^2.3.2",
+        "path-type": "^1.0.0"
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@@ -1599,8 +1597,8 @@
       "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
       "dev": true,
       "requires": {
-        "find-up": "1.1.2",
-        "read-pkg": "1.1.0"
+        "find-up": "^1.0.0",
+        "read-pkg": "^1.0.0"
       }
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@@ -1609,13 +1607,13 @@
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       "dev": true,
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-        "inherits": "2.0.3",
-        "isarray": "1.0.0",
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-        "safe-buffer": "5.1.1",
-        "string_decoder": "1.0.3",
-        "util-deprecate": "1.0.2"
+        "core-util-is": "~1.0.0",
+        "inherits": "~2.0.3",
+        "isarray": "~1.0.0",
+        "process-nextick-args": "~1.0.6",
+        "safe-buffer": "~5.1.1",
+        "string_decoder": "~1.0.3",
+        "util-deprecate": "~1.0.1"
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@@ -1624,8 +1622,8 @@
       "integrity": "sha1-z5Fqsf1fHxbfsggi3W7H9zDCr94=",
       "dev": true,
       "requires": {
-        "indent-string": "2.1.0",
-        "strip-indent": "1.0.1"
+        "indent-string": "^2.1.0",
+        "strip-indent": "^1.0.1"
       }
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@@ -1634,7 +1632,7 @@
       "integrity": "sha1-UhTFOpJtNVJwdSf7q0FdvAjQbdo=",
       "dev": true,
       "requires": {
-        "is-finite": "1.0.2"
+        "is-finite": "^1.0.0"
       }
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@@ -1643,28 +1641,28 @@
       "integrity": "sha1-xpKJRqDgbF+Nb4qTM0af/aRimKA=",
       "dev": true,
       "requires": {
-        "aws-sign2": "0.6.0",
-        "aws4": "1.6.0",
-        "caseless": "0.12.0",
-        "combined-stream": "1.0.5",
-        "extend": "3.0.1",
-        "forever-agent": "0.6.1",
-        "form-data": "2.1.4",
-        "har-validator": "4.2.1",
-        "hawk": "3.1.3",
-        "http-signature": "1.1.1",
-        "is-typedarray": "1.0.0",
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-        "mime-types": "2.1.16",
-        "oauth-sign": "0.8.2",
-        "performance-now": "0.2.0",
-        "qs": "6.4.0",
-        "safe-buffer": "5.1.1",
-        "stringstream": "0.0.5",
-        "tough-cookie": "2.3.2",
-        "tunnel-agent": "0.6.0",
-        "uuid": "3.1.0"
+        "aws-sign2": "~0.6.0",
+        "aws4": "^1.2.1",
+        "caseless": "~0.12.0",
+        "combined-stream": "~1.0.5",
+        "extend": "~3.0.0",
+        "forever-agent": "~0.6.1",
+        "form-data": "~2.1.1",
+        "har-validator": "~4.2.1",
+        "hawk": "~3.1.3",
+        "http-signature": "~1.1.0",
+        "is-typedarray": "~1.0.0",
+        "isstream": "~0.1.2",
+        "json-stringify-safe": "~5.0.1",
+        "mime-types": "~2.1.7",
+        "oauth-sign": "~0.8.1",
+        "performance-now": "^0.2.0",
+        "qs": "~6.4.0",
+        "safe-buffer": "^5.0.1",
+        "stringstream": "~0.0.4",
+        "tough-cookie": "~2.3.0",
+        "tunnel-agent": "^0.6.0",
+        "uuid": "^3.0.0"
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@@ -1717,7 +1715,7 @@
       "integrity": "sha1-ZUEYTMkK7qbG57NeJlkIJEPGYZg=",
       "dev": true,
       "requires": {
-        "hoek": "2.16.3"
+        "hoek": "2.x.x"
       }
     },
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@@ -1726,7 +1724,7 @@
       "integrity": "sha1-SzBz2TP/UfORLwOsVRlJikFQ20A=",
       "dev": true,
       "requires": {
-        "spdx-license-ids": "1.2.2"
+        "spdx-license-ids": "^1.0.2"
       }
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@@ -1753,14 +1751,14 @@
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       "dev": true,
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-        "assert-plus": "1.0.0",
-        "bcrypt-pbkdf": "1.0.1",
-        "dashdash": "1.14.1",
-        "ecc-jsbn": "0.1.1",
-        "getpass": "0.1.7",
-        "jsbn": "0.1.1",
-        "tweetnacl": "0.14.5"
+        "asn1": "~0.2.3",
+        "assert-plus": "^1.0.0",
+        "bcrypt-pbkdf": "^1.0.0",
+        "dashdash": "^1.12.0",
+        "ecc-jsbn": "~0.1.1",
+        "getpass": "^0.1.1",
+        "jsbn": "~0.1.0",
+        "tweetnacl": "~0.14.0"
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@@ -1783,7 +1781,7 @@
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       "dev": true,
       "requires": {
-        "safe-buffer": "5.1.1"
+        "safe-buffer": "~5.1.0"
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@@ -1792,9 +1790,9 @@
       "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
       "dev": true,
       "requires": {
-        "code-point-at": "1.1.0",
-        "is-fullwidth-code-point": "1.0.0",
-        "strip-ansi": "3.0.1"
+        "code-point-at": "^1.0.0",
+        "is-fullwidth-code-point": "^1.0.0",
+        "strip-ansi": "^3.0.0"
       }
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@@ -1809,7 +1807,7 @@
       "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
       "dev": true,
       "requires": {
-        "ansi-regex": "2.1.1"
+        "ansi-regex": "^2.0.0"
       }
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@@ -1818,7 +1816,7 @@
       "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
       "dev": true,
       "requires": {
-        "is-utf8": "0.2.1"
+        "is-utf8": "^0.2.0"
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@@ -1827,7 +1825,7 @@
       "integrity": "sha1-DHlipq3vp7vUrDZkYKY4VSrhoKI=",
       "dev": true,
       "requires": {
-        "get-stdin": "4.0.1"
+        "get-stdin": "^4.0.1"
       }
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     "supports-color": {
@@ -1842,9 +1840,9 @@
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       "dev": true,
       "requires": {
-        "block-stream": "0.0.9",
-        "fstream": "1.0.11",
-        "inherits": "2.0.3"
+        "block-stream": "*",
+        "fstream": "^1.0.2",
+        "inherits": "2"
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@@ -1853,12 +1851,12 @@
       "integrity": "sha1-s/26gC5dVqM8L28QeUsy5Hescp0=",
       "dev": true,
       "requires": {
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-        "debug": "2.2.0",
-        "faye-websocket": "0.10.0",
-        "livereload-js": "2.2.2",
-        "parseurl": "1.3.1",
-        "qs": "5.1.0"
+        "body-parser": "~1.14.0",
+        "debug": "~2.2.0",
+        "faye-websocket": "~0.10.0",
+        "livereload-js": "^2.2.0",
+        "parseurl": "~1.3.0",
+        "qs": "~5.1.0"
       }
     },
     "tough-cookie": {
@@ -1867,7 +1865,7 @@
       "integrity": "sha1-8IH3bkyFcg5sN6X6ztc3FQ2EByo=",
       "dev": true,
       "requires": {
-        "punycode": "1.4.1"
+        "punycode": "^1.4.1"
       }
     },
     "trim-newlines": {
@@ -1882,7 +1880,7 @@
       "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
       "dev": true,
       "requires": {
-        "safe-buffer": "5.1.1"
+        "safe-buffer": "^5.0.1"
       }
     },
     "tweetnacl": {
@@ -1905,7 +1903,7 @@
       "dev": true,
       "requires": {
         "media-typer": "0.3.0",
-        "mime-types": "2.1.16"
+        "mime-types": "~2.1.15"
       }
     },
     "underscore.string": {
@@ -1938,8 +1936,8 @@
       "integrity": "sha1-KAS6vnEq0zeUWaz74kdGqywwP7w=",
       "dev": true,
       "requires": {
-        "spdx-correct": "1.0.2",
-        "spdx-expression-parse": "1.0.4"
+        "spdx-correct": "~1.0.0",
+        "spdx-expression-parse": "~1.0.0"
       }
     },
     "verror": {
@@ -1948,9 +1946,9 @@
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
       "dev": true,
       "requires": {
-        "assert-plus": "1.0.0",
+        "assert-plus": "^1.0.0",
         "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
+        "extsprintf": "^1.2.0"
       },
       "dependencies": {
         "assert-plus": {
@@ -1967,7 +1965,7 @@
       "integrity": "sha1-XLJVbOuF9Dc8bYI4qmkchFThOjY=",
       "dev": true,
       "requires": {
-        "websocket-extensions": "0.1.1"
+        "websocket-extensions": ">=0.1.1"
       }
     },
     "websocket-extensions": {
@@ -1982,7 +1980,7 @@
       "integrity": "sha1-mofEN48D6CfOyvGs31bHNsAcFOU=",
       "dev": true,
       "requires": {
-        "isexe": "2.0.0"
+        "isexe": "^2.0.0"
       }
     },
     "wide-align": {
@@ -1991,7 +1989,7 @@
       "integrity": "sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w==",
       "dev": true,
       "requires": {
-        "string-width": "1.0.2"
+        "string-width": "^1.0.2"
       }
     },
     "wrappy": {
diff --git a/package.json b/package.json
index 5b64d96..78635be 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
   "gypfile": true,
   "readmeFilename": "README.md",
   "dependencies": {
-    "async": "^2.5.0",
+    "async": "^3.0.0",
     "nan": "^2.6.2"
   },
   "devDependencies": {