Revert D4559304: FBReactKit/js: upgrade babel dependencies

Differential Revision: D4559304

fbshipit-source-id: fb371aecf48a2dc957ccc6d6715b8ee694335fec

package.json

@@ -124,21 +124,21 @@
     "absolute-path": "^0.0.0",
     "art": "^0.10.0",
     "async": "^2.0.1",
-    "babel-core": "^6.23.1",
-    "babel-generator": "^6.23.0",
-    "babel-plugin-external-helpers": "^6.22.0",
-    "babel-plugin-syntax-trailing-function-commas": "^6.22.0",
-    "babel-plugin-transform-flow-strip-types": "^6.22.0",
-    "babel-plugin-transform-object-rest-spread": "^6.23.0",
-    "babel-polyfill": "^6.23.0",
+    "babel-core": "^6.21.0",
+    "babel-generator": "^6.21.0",
+    "babel-plugin-external-helpers": "^6.18.0",
+    "babel-plugin-syntax-trailing-function-commas": "^6.20.0",
+    "babel-plugin-transform-flow-strip-types": "^6.21.0",
+    "babel-plugin-transform-object-rest-spread": "^6.20.2",
+    "babel-polyfill": "^6.20.0",
     "babel-preset-es2015-node": "^6.1.1",
     "babel-preset-fbjs": "^2.1.0",
     "babel-preset-react-native": "^1.9.1",
-    "babel-register": "^6.23.0",
-    "babel-runtime": "^6.23.0",
-    "babel-traverse": "^6.23.1",
-    "babel-types": "^6.23.0",
-    "babylon": "^6.15.0",
+    "babel-register": "^6.18.0",
+    "babel-runtime": "^6.20.0",
+    "babel-traverse": "^6.21.0",
+    "babel-types": "^6.21.0",
+    "babylon": "^6.14.1",
     "base64-js": "^1.1.2",
     "bser": "^1.0.2",
     "chalk": "^1.1.1",
@@ -178,7 +178,7 @@
     "react-timer-mixin": "^0.13.2",
     "react-transform-hmr": "^1.0.4",
     "rebound": "^0.0.13",
-    "regenerator-runtime": "^0.10.1",
+    "regenerator-runtime": "^0.9.5",
     "request": "^2.79.0",
     "rimraf": "^2.5.4",
     "sane": "~1.4.1",