Upgrade babel-preset-fbjs

Summary: Upgrades `babel-preset-fbjs` to v2.1.4, which has better support for moving es2015 imports around.

Reviewed By: BYK

Differential Revision: D5287818

fbshipit-source-id: a2fa7b0267b913f126b37946cf24dd4c5146c245

package.json

@@ -148,7 +148,7 @@
     "babel-plugin-transform-object-rest-spread": "^6.20.2",
     "babel-polyfill": "^6.20.0",
     "babel-preset-es2015-node": "^6.1.1",
-    "babel-preset-fbjs": "^2.1.3",
+    "babel-preset-fbjs": "^2.1.4",
     "babel-preset-react-native": "^2.0.0",
     "babel-register": "^6.24.1",
     "babel-runtime": "^6.23.0",