chore(package): update mocha to version 3.5.2

package.json

@@ -42,7 +42,7 @@
     "assume": "~1.5.0",
     "beacons": "0.0.x",
     "istanbul": "~0.4.5",
-    "mocha": "~3.5.0",
+    "mocha": "~3.5.2",
     "pre-commit": "~1.2.0",
     "url-parse": "~1.1.7"
   }