Fix upvotes in upvote box on left, add mongo server localhost connection

Placed upvotes in dummy upvote box, added a global variable in the mongo file to allow easy localhost connection to server.
I don't think overwriting process is a good idea. That is a native node property. Overwriting it might have unpredictable side effects. I think it would be similar to overwriting window in the browser.

Also, I am not sure why this is necessary and it seems prone to error. Can't we just set up an environment variable on our local machines?