Create AngularJS variant of contacts-mobile-basic QS

In aid of a university course where teaching Java EE application development, we required an AngularJS variant of the contacts-mobile-basic quickstart to act as a base for further student work.

After the initial completion of the course material, rather than continue to maintain the new quickstart in isolation, it seems sensible to contribute it back.

We have attempted to replicate the functionality of contacts-mobile-basic front end (written using jquery-mobile) as closely as possible in AngularJS. We have thoroughly commented the AngularJS code and ensured that it follows commonly accepted best practices.

The back end (written using RESTEasy etc...) remains largely unchanged.
Please see attached pull request for review of the contribution.

Cheers