chore(package): update coveralls to version 3.0.6

Closes #97

Author: greenkeeper[bot]

package.json

@@ -179,7 +179,7 @@
     "babel-core": "^6.10.4",
     "babel-preset-es2015": "^6.9.0",
     "browserify": "^14.3.0",
-    "coveralls": "^2.11.2",
+    "coveralls": "^3.0.6",
     "hyperquest": "^2.0.0",
     "isomorphic-fetch": "^2.2.0",
     "istanbul": "^0.4.2",