chore(package): update chai-as-promised to version 7.1.0

Closes #12

Author: greenkeeper[bot]

package.json

@@ -27,7 +27,7 @@
     "babel-cli": "^6.6.5",
     "babel-register": "^6.7.2",
     "chai": "4.0.2",
-    "chai-as-promised": "^6.0.0",
+    "chai-as-promised": "^7.1.0",
     "eslint": "^3.0.1",
     "istanbul": "^1.0.0-alpha.2",
     "mocha": "^3.0.1"