Add missing babel-cli dependency

Author: Didier Franc

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-code-splitting",
-  "version": "1.0.3",
+  "version": "1.1.0",
   "description": "Code splitting won't be a nightmare anymore",
   "main": "./dist/react-code-splitting.js",
   "repository": "https://github.com/didierfranc/react-code-splitting",
@@ -10,6 +10,7 @@
     "build": "babel ./src/index.js --out-file ./dist/react-code-splitting.js"
   },
   "devDependencies": {
+    "babel-cli": "^6.23.0",
     "babel-core": "^6.22.1",
     "babel-preset-es2015": "^6.22.0",
     "babel-preset-react": "^6.22.0",