Sync to upstream

.eslintrc

@@ -1,63 +1,62 @@
 {
-    "env": {
-        "node": true,
-        "es6": true
-    },
-    "parserOptions": {
-        "ecmaVersion": 6,
-        "sourceType": "module"
-    },
-    "extends": [
-        "eslint:recommended"
-    ],
-    "rules": {
-        "dot-notation": "error",
-        "eqeqeq": ["error", "smart"],
-        "indent": ["off", 4],
-        "keyword-spacing": "error",
-        "linebreak-style": ["error", "unix"],
-        "no-caller": "error",
-        "no-catch-shadow": "error",
-        "no-console": "warn",
-        "no-div-regex": "error",
-        "no-extend-native": "error",
-        "no-extra-bind": "error",
-        "no-floating-decimal": "error",
-        "no-implied-eval": "error",
-        "no-invalid-this": "error",
-        "no-iterator": "error",
-        "no-labels": "error",
-        "no-label-var": "error",
-        "no-lone-blocks": "error",
-        "no-loop-func": "error",
-        "no-multi-str": "error",
-        "no-native-reassign": "error",
-        "no-new": "error",
-        "no-new-func": "error",
-        "no-new-wrappers": "error",
-        "no-octal": "error",
-        "no-octal-escape": "error",
-        "no-process-env": "error",
-        "no-proto": "error",
-        "no-return-assign": "off",
-        "no-script-url": "error",
-        "no-self-compare": "error",
-        "no-sequences": "error",
-        "no-shadow": "off",
-        "no-shadow-restricted-names": "error",
-        "no-throw-literal": "error",
-        "no-unneeded-ternary": "error",
-        "no-unused-expressions": "error",
-        "no-unexpected-multiline": "error",
-        "no-unused-vars": "warn",
-        "no-void": "error",
-        "no-warning-comments": "warn",
-        "no-with": "error",
-        "no-use-before-define": ["off", "nofunc"],
-        "semi": ["error", "always"],
-        "semi-spacing": "error",
-        "space-unary-ops": "error",
-        "wrap-regex": "off",
-        "quotes": ["error", "single"]
-    }
+  "env": {
+    "node": true,
+    "es6": true
+  },
+  "parserOptions": {
+    "ecmaVersion": 6,
+    "sourceType": "module"
+  },
+  "extends": [
+    "eslint:recommended"
+  ],
+  "rules": {
+    "dot-notation": "error",
+    "eqeqeq": ["error", "smart"],
+    "keyword-spacing": "error",
+    "linebreak-style": ["error", "unix"],
+    "no-caller": "error",
+    "no-catch-shadow": "error",
+    "no-console": "warn",
+    "no-div-regex": "error",
+    "no-extend-native": "error",
+    "no-extra-bind": "error",
+    "no-floating-decimal": "error",
+    "no-implied-eval": "error",
+    "no-invalid-this": "error",
+    "no-iterator": "error",
+    "no-labels": "error",
+    "no-label-var": "error",
+    "no-lone-blocks": "error",
+    "no-loop-func": "error",
+    "no-multi-str": "error",
+    "no-native-reassign": "error",
+    "no-new": "error",
+    "no-new-func": "error",
+    "no-new-wrappers": "error",
+    "no-octal": "error",
+    "no-octal-escape": "error",
+    "no-process-env": "error",
+    "no-proto": "error",
+    "no-prototype-builtins": "off",
+    "no-return-assign": "off",
+    "no-script-url": "error",
+    "no-self-compare": "error",
+    "no-sequences": "error",
+    "no-shadow": "off",
+    "no-shadow-restricted-names": "error",
+    "no-throw-literal": "error",
+    "no-unneeded-ternary": "error",
+    "no-unused-expressions": "error",
+    "no-unexpected-multiline": "error",
+    "no-unused-vars": "warn",
+    "no-void": "error",
+    "no-warning-comments": "warn",
+    "no-with": "error",
+    "no-use-before-define": ["off", "nofunc"],
+    "semi": ["error", "always"],
+    "semi-spacing": "error",
+    "space-unary-ops": "error",
+    "wrap-regex": "off"
+  }
 }

.gitignore

@@ -1,8 +1,7 @@
 /.nyc_output/
 /coverage/
 /node_modules/
-/dist/*.js
-/dist/*.json
 
 .DS_Store
 npm-debug.log
+package-lock.json

.npmignore

@@ -7,4 +7,5 @@
 .DS_Store
 .travis.yml
 npm-debug.log
+package-lock.json
 RELEASE.md

.travis.yml

@@ -1,5 +1,4 @@
 language: node_js
 node_js:
-  - "4"
-  - "6"
-  - "8"
+  - "10"
+  - "12"