chore(package): update babel-plugin-transform-object-rest-spread to version 6.20.2

Closes #1466

https://greenkeeper.io/

package.json

@@ -201,7 +201,7 @@
     "babel-plugin-react-transform": "2.0.2",
     "babel-plugin-transform-class-properties": "6.18.0",
     "babel-plugin-transform-decorators-legacy": "1.3.4",
-    "babel-plugin-transform-object-rest-spread": "6.16.0",
+    "babel-plugin-transform-object-rest-spread": "6.20.2",
     "babel-preset-es2015": "6.18.0",
     "babel-preset-react": "6.16.0",
     "babel-preset-stage-2": "6.18.0",