Merge pull request #3 from fmiras/greenkeeper/sinon-5.0.0

chore(package): update sinon to version 5.0.0

Author: fmiras

package.json

@@ -39,7 +39,7 @@
     "nyc": "11.6.0",
     "prettier": "1.11.1",
     "rewire": "3.0.2",
-    "sinon": "4.4.6",
+    "sinon": "5.0.0",
     "xo": "0.20.3"
   },
   "peerDependencies": {