(feat) Add Karma Unit Testing for Client

Guys, I've added Karma unit testing for the client

Instructions for use:
1) run "karma start" in www/
2) leave the karma chrome window open
3) in another terminal, run "karma run" from www/

You write tests in www/test/

If you add a new directory in www/test/ be sure to add it to the karma.conf.js on line 42.