Feature create mocha config file

## Creates / adds a mocha.conf.js 

The mocha.conf.js file is meant to serve the same purpose to mocha as the karma.conf.js file serves to karma. 
Yeah that's strangely worded; deal with it. :-P

NOTE: I don't know how to pass the mocha.conf.js file to karma... so someone else should fork my branch and integrate it.