increated timeout for rate limit test

Author: iolufemi

test/mocha.opts

@@ -1,2 +1,2 @@
 --recursive
---timeout 5000
+--timeout 15000

test/routes/index.js

@@ -143,7 +143,7 @@ it('should save rate limit error on request log', function(done){
         .catch(function(err){
             done(err);
         });
-    },4000);
+    },14000);
 
 });