Add eslint and editorconfig for linting and codestyle (#568)

* Add eslint and editorconfig for linting and consistency

* Add ironically missing final newline to .editorconfig

Author: JeremyPlease

.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

.eslintrc.json

@@ -0,0 +1,26 @@
+{
+    "env": {
+        "es6": true,
+        "node": true,
+        "browser": true
+    },
+    "extends": "eslint:recommended",
+    "installedESLint": true,
+    "parserOptions": {
+        "ecmaFeatures": {
+            "experimentalObjectRestSpread": true,
+            "jsx": true
+        },
+        "sourceType": "module"
+    },
+    "plugins": [
+        "react"
+    ],
+    "rules": {
+        "react/jsx-uses-vars": 1,
+        "react/jsx-uses-react": 1,
+        "react/react-in-jsx-scope": 1,
+        "no-console": 0,
+        "no-case-declarations": 0
+    }
+}

package.json

@@ -52,6 +52,8 @@
     "babel-polyfill": "^6.7.2",
     "babel-runtime": "~5.8.25",
     "css-loader": "~0.18.0",
+    "eslint": "^3.8.1",
+    "eslint-plugin-react": "^6.4.1",
     "file-loader": "^0.8.5",
     "history": "^2.1.2",
     "http-server": "~0.8.5",
@@ -82,6 +84,7 @@
     "pig": "http-server ./PIG -p 4041 -s & webpack --config webpack/PIG.config.js --progress --watch",
     "build": "NODE_ENV=production webpack --config webpack/production.config.js && webpack --config webpack/PIG.config.js",
     "test": "NODE_PATH=./node_modules jest",
+    "lint": "eslint . --ignore-path .gitignore --ignore-pattern *.test.js",
     "generate": "node scripts/generate.js",
     "prepublish": "webpack --config webpack/publish.config.js",
     "start": "node ./Parse-Dashboard/index.js"