Merge pull request trailsjs#1 from fernandolguevara/fernandolguevara-fix-dev-dependencies

fix dev dependencies

Author: fernandolguevara

package.json

@@ -56,6 +56,7 @@
   "devDependencies": {
     "babel": "^6.5.2",
     "babel-cli": "^6.14.0",
+    "babel-core": "^6.14.0",
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-preset-es2015": "^6.14.0",
     "gulp": "^3.9.0",