Webpack problem

Hi here is my PR

I am not able to use your latest version because there is missing one comma in contributors.
Webpack is not able to handle it correctly in this moment.
Thanks

package.json

@@ -26,7 +26,7 @@
     {
       "name": "Razvan Popa",
       "url": "https://github.com/VholtWCP"
-    }
+    },
     {
       "name": "Stijn de Witt",
       "email": "StijnDeWitt@hotmail.com",