Upgrade fbjs preset

Summary:
This removes a bunch of overlapping dependencies now that we do
everything you need in the fbjs preset.

This is pending the actual release of v2 of the preset, which hasn't happened yet - I wanted to try this and see what the outcome would be. Luckily nothing really needed to be done :)

Here's the diff of `lib/`: https://gist.github.com/zpao/79879855ac21d12094087a754daa7fa4. Overwhelmingly the difference is that have the function name transform on now. Otherwise there are a couple ordering differences with the helpers and then L1620 (not sure what's happening there)

It looks like you weren't actually making use of anything that was in stage-1, and es2015 wasn't even used, so got rid of those.
Closes #1139

Differential Revision: D3357595

Pulled By: steveluscher

fbshipit-source-id: e4f29c56e98da0870cdb0339a6ae1f938c2431ee

package.json

@@ -43,10 +43,7 @@
     "babel-eslint": "^6.0.4",
     "babel-plugin-transform-runtime": "^6.8.0",
     "babel-polyfill": "^6.8.0",
-    "babel-preset-es2015": "^6.6.0",
-    "babel-preset-fbjs": "^1.0.0",
-    "babel-preset-react": "^6.5.0",
-    "babel-preset-stage-1": "^6.5.0",
+    "babel-preset-fbjs": "^2.0.0-alpha.1",
     "del": "^1.2.0",
     "eslint": "^2.9.0",
     "eslint-plugin-react": "^5.0.1",
@@ -60,7 +57,7 @@
     "gulp-header": "^1.7.1",
     "gulp-util": "^3.0.7",
     "jest": "^12.1.1",
-    "object-assign": "^3.0.0",
+    "object-assign": "^4.1.0",
     "react": "^0.14.0",
     "react-dom": "^0.14.0",
     "run-sequence": "^1.1.2",
@@ -96,6 +93,7 @@
       "<rootDir>/node_modules/fbjs/node_modules/core-js/",
       "<rootDir>/node_modules/fbjs/node_modules/promise/",
       "<rootDir>/node_modules/fbjs/lib/(?!(ErrorUtils.js$|fetch.js$|fetchWithRetries.js$))",
+      "<rootDir>/node_modules/object-assign/",
       "<rootDir>/node_modules/react/",
       "<rootDir>/node_modules/react-dom/",
       "<rootDir>/node_modules/react-static-container/"

scripts/getBabelOptions.js

@@ -20,8 +20,6 @@ module.exports = function(options) {
   return {
     plugins: options.plugins,
     presets: [
-      'stage-1',
-      'react',
       require('babel-preset-fbjs/configure')({
         autoImport: true,
         inlineRequires: true,