feat: require Node.js >=10.13

BREAKING CHANGE: Require Node.js >= 10.13

Author: pvdlg

.travis.yml

@@ -2,8 +2,7 @@ language: node_js
 
 node_js:
   - 12
-  - 10
-  - 8.16
+  - 10.13
 
 # Trigger a push build on release and greenkeeper branches + PRs build on every branches
 # Avoid double build on PRs (See https://github.com/travis-ci/travis-ci/issues/1147)

package.json

@@ -28,7 +28,7 @@
     "xo": "^0.25.0"
   },
   "engines": {
-    "node": ">=8.16"
+    "node": ">=10.13"
   },
   "files": [
     "lib",