chore(package): update coveralls to version 3.0.1

Closes #91

Author: greenkeeper[bot]

package.json

@@ -86,7 +86,7 @@
     "ava": "^0.16.0",
     "babel-cli": "^6.18.0",
     "babel-eslint": "^7.1.0",
-    "coveralls": "^2.11.14",
+    "coveralls": "^3.0.1",
     "cross-env": "^3.1.3",
     "espower": "^2.0.0",
     "gulp": "gulpjs/gulp#4.0",