Merge pull request #74 from KnisterPeter/greenkeeper-coveralls-2.11.9

Update coveralls to version 2.11.9 🚀

Author: KnisterPeter

package.json

@@ -39,7 +39,7 @@
     "babel-preset-es2015": "6.6.0",
     "babel-register": "6.6.5",
     "chai": "3.5.0",
-    "coveralls": "2.11.8",
+    "coveralls": "2.11.9",
     "cz-conventional-changelog": "1.1.5",
     "in-publish": "2.0.0",
     "mocha": "2.4.5",