chore(package): update coveralls to version 3.0.5

Closes #17

Author: greenkeeper[bot]

package.json

@@ -16,7 +16,7 @@
     "ava": "^0.19.0",
     "babel-cli": "^6.18.0",
     "babel-preset-env": "^1.3.3",
-    "coveralls": "^2.11.15",
+    "coveralls": "^3.0.5",
     "eslint": "^3.15.0",
     "eslint-config-airbnb": "^14.1.0",
     "eslint-plugin-import": "^2.2.0",