Upgrading ESLint and adding some more rules. Refactoring to meet these new rules

web/react/package.json

@@ -17,9 +17,9 @@
     "babelify": "6.3.0",
     "uglify-js": "2.4.24",
     "watchify": "3.4.0",
-    "eslint": "1.6.0",
-    "eslint-plugin-react": "3.5.1",
-    "babel-eslint": "4.1.4"
+    "eslint": "1.9.0",
+    "eslint-plugin-react": "3.9.0",
+    "babel-eslint": "4.1.5"
   },
   "scripts": {
     "check": "",