specify react version for linter

Author: antoinerg

.eslintrc

@@ -33,5 +33,14 @@
   },
   "plugins": [
     "react"
-  ]
+  ],
+  "settings": {
+    "react": {
+      "createClass": "createReactClass", // Regex for Component Factory to use,
+                                         // default to "createReactClass"
+      "pragma": "React",  // Pragma to use, default to "React"
+      "version": "^15.6.1", // React version, default to the latest React stable release
+
+    }
+  }
 }