deps: upgrade eslint to 2.0.0+

.eslintrc.json

@@ -7,9 +7,12 @@
     "jest": true,
     "es6": true
   },
-  "ecmaFeatures": {
-    "jsx": true,
-    "experimentalObjectRestSpread": true
+  "parserOptions": {
+    "ecmaVersion": 6,
+    "ecmaFeatures": {
+      "jsx": true,
+      "experimentalObjectRestSpread": true
+    }
   },
   "plugins": [
     "markdown",

package.json

@@ -86,11 +86,11 @@
     "css-loader": "^0.23.0",
     "cz-conventional-changelog": "^1.1.5",
     "es3ify-loader": "^0.1.0",
-    "eslint": "^1.1.0",
-    "eslint-config-airbnb": "latest",
+    "eslint": "^2.2.0",
+    "eslint-config-airbnb": "^6.0.1",
     "eslint-plugin-babel": "^3.0.0",
     "eslint-plugin-markdown": "*",
-    "eslint-plugin-react": "^3.3.1",
+    "eslint-plugin-react": "^4.0.0",
     "eslint-tinker": "~0.2.0",
     "extract-text-webpack-plugin": "^1.0.1",
     "gh-pages": "^0.9.0",