Merge pull request #5 from softbrix/renovate/mocha-5.x

Update dependency mocha to v5

package.json

@@ -24,6 +24,6 @@
   },
   "homepage": "https://github.com/softbrix/dibba_tree#readme",
   "devDependencies": {
-    "mocha": "3.2.0"
+    "mocha": "5.2.0"
   }
 }