Use prettier for autoformatting

Not having to think about formatting is life-changing. Prettier will
autoformat JavaScript, TypeScript, etc.

See: https://github.com/prettier/prettier

.eslintrc

@@ -12,8 +12,13 @@
   },
   "parser": "babel-eslint",
   "rules": {
+    "prettier/prettier": [
+      "error",
+      {
+        "printWidth": 120
+      }
+    ],
     // Possible Errors
-    "comma-dangle": [2, "never"],
     "no-cond-assign": 2,
     "no-console": 0,
     "no-constant-condition": 2,
@@ -24,12 +29,9 @@
     "no-empty-character-class": 2,
     "no-ex-assign": 2,
     "no-extra-boolean-cast": 2,
-    "no-extra-parens": 0,
-    "no-extra-semi": 2,
     "no-func-assign": 2,
     "no-inner-declarations": 2,
     "no-invalid-regexp": 2,
-    "no-irregular-whitespace": 2,
     "no-negated-in-lhs": 2,
     "no-obj-calls": 2,
     "no-regex-spaces": 2,
@@ -45,7 +47,6 @@
     "consistent-return": 2,
     "curly": 2,
     "default-case": 2,
-    "dot-notation": 2,
     "eqeqeq": 2,
     "guard-for-in": 2,
     "no-alert": 2,
@@ -63,7 +64,6 @@
     "no-labels": 2,
     "no-lone-blocks": 2,
     "no-loop-func": 2,
-    "no-multi-spaces": 2,
     "no-multi-str": 0,
     "no-native-reassign": 2,
     "no-new": 2,
@@ -100,63 +100,31 @@
     "no-unused-vars": 2,
     "no-use-before-define": 2,
     // Stylistic Issues
-    "indent": [2, 2, {
-      "SwitchCase": 1
-    }],
-    "brace-style": 2,
     "camelcase": 0,
-    "comma-spacing": 2,
-    "comma-style": 2,
     "consistent-this": 0,
-    "eol-last": 2,
     "func-names": 0,
     "func-style": 0,
-    "key-spacing": [2, {
-      "beforeColon": false,
-      "afterColon": true
-    }],
     "max-nested-callbacks": 0,
     "new-cap": 0,
-    "new-parens": 2,
     "no-array-constructor": 2,
     "no-inline-comments": 0,
     "no-lonely-if": 2,
-    "no-mixed-spaces-and-tabs": 2,
     "no-nested-ternary": 2,
     "no-new-object": 2,
-    "semi-spacing": [2, {
-      "before": false,
-      "after": true
-    }],
-    "no-spaced-func": 2,
     "no-ternary": 0,
-    "no-trailing-spaces": 2,
-    "no-multiple-empty-lines": 2,
     "no-underscore-dangle": 0,
     "one-var": 0,
     "operator-assignment": [2, "always"],
-    "padded-blocks": 0,
-    "quotes": [2, "double"],
-    "quote-props": [2, "as-needed"],
-    "semi": [2, "always"],
     "sort-vars": [2, {"ignoreCase": true}],
-    "keyword-spacing": 2,
-    "space-before-blocks": 2,
-    "object-curly-spacing": [2, "never"],
-    "array-bracket-spacing": [2, "never"],
-    "space-in-parens": 2,
-    "space-infix-ops": 2,
-    "space-unary-ops": 2,
-    "spaced-comment": 2,
     "wrap-regex": 0,
     // Legacy
     "max-depth": 0,
-    "max-len": [2, 120],
     "max-params": 0,
     "max-statements": 0,
     "no-plusplus": 0
   },
   "plugins": [
+    "prettier",
     "react"
   ],
   "extends": ["plugin:react/recommended"]

package.json

@@ -39,7 +39,8 @@
     "babel-preset-react": "^6.3.13",
     "babel-preset-stage-0": "^6.3.13",
     "css-loader": "^0.23.1",
-    "eslint": "^2.2.0",
+    "eslint": "^3.14.1",
+    "eslint-plugin-prettier": "^2.1.2",
     "eslint-plugin-react": "^4.1.0",
     "font-awesome-webpack": "0.0.4",
     "jasmine-core": "^2.4.1",
@@ -54,6 +55,7 @@
     "less": "^2.6.0",
     "less-loader": "^2.2.2",
     "phantomjs-prebuilt": "^2.1.6",
+    "prettier": "^1.5.0",
     "react-transform-hmr": "^1.0.1",
     "style-loader": "^0.13.0",
     "url-loader": "^0.5.7",