Cleanup

A bunch of small changes. Mainly fixes for JSHint plus some spelling errors.

Decided to remove the issues module test, as it was failing randomly (due to bad connection). Should probably find a way to fake the github connections before adding it back, as running the tests should probably not require an internet connection.

Also moved the addCommas method that was declared in both the youtube and the profile module to a new file utils.js under /lib. And added tests for the function.