fix(package): added transform-regenerator in dev dependencies

Author: ritz078

package.json

@@ -38,6 +38,7 @@
     "babel": "^6.1.18",
     "babel-core": "^6.2.1",
     "babel-eslint": "^4.1.6",
+    "babel-plugin-transform-regenerator": "^6.2.0",
     "babel-preset-es2015-rollup": "^1.0.0",
     "chai": "^3.2.0",
     "commitizen": "^2.4.6",