chore(package): update ember-cli-babel to version 6.1.0

Closes #28

https://greenkeeper.io/

Author: greenkeeper[bot]

package.json

@@ -32,7 +32,7 @@
     "ember-bootstrap": "1.0.0-alpha.10",
     "ember-cli": "~2.8.0",
     "ember-cli-app-version": "^3.0.0",
-    "ember-cli-babel": "^5.1.6",
+    "ember-cli-babel": "^6.1.0",
     "ember-cli-bootstrap-sassy": "0.5.5",
     "ember-cli-code-coverage": "^0.3.11",
     "ember-cli-dependency-checker": "^1.2.0",