chore(package): update babel-core to version 6.6.4

http://greenkeeper.io/
2016-03-02 22:23:16 +00:00 · 2016-03-02 22:23:16 +00:00 · 563763fc4b
--- a/package.json
+++ b/package.json
@ -33,7 +33,7 @@
    "react-router": "2.0.0"
  },
  "devDependencies": {
-    "babel-core": "6.6.0",
+    "babel-core": "6.6.4",
    "babel-eslint": "5.0.0",
    "babel-loader": "6.2.4",
    "babel-plugin-react-transform": "2.0.0",