chore(package): update babel-register to version 6.9.0 (#109)

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -39,7 +39,7 @@
   "devDependencies": {
     "babel-core": "6.8.0",
     "babel-preset-es2015": "6.6.0",
-    "babel-register": "6.8.0",
+    "babel-register": "6.9.0",
     "chai": "3.5.0",
     "chokidar-cli": "1.2.0",
     "conventional-changelog-cli": "1.2.0",