Merge pull request #22 from vuejs/dev

Update master branch

Author: yyx990803

.eslintignore

@@ -0,0 +1,2 @@
+node_modules
+lib/recommended-rules.js

.eslintrc.js

@@ -0,0 +1,22 @@
+module.exports = {
+  root: true,
+  parserOptions: {
+    ecmaVersion: 6
+  },
+  env: {
+    node: true,
+    mocha: true
+  },
+  extends: [
+    'plugin:eslint-plugin/recommended',
+    'plugin:vue-libs/recommended'
+  ],
+  plugins: [
+    'eslint-plugin'
+  ],
+  rules: {
+    'eslint-plugin/report-message-format': ['error', '^[A-Z].*\\.$'],
+    'eslint-plugin/prefer-placeholders': 'error',
+    'eslint-plugin/consistent-output': 'error'
+  }
+}