add support for groupSelection and handle mutually exclusive states that were not handled before

Enyo-DCO-1.1-Signed-Off-By: Cole Davis (cole.davis@lge.com)
Merge pull request #802 from enyojs/ENYO-21-coledavis

Fix for: ENYO-21
Edits for ui module kinds. Enyo-DCO-1.1-Signed-Off-By: Jim Tang (jim.tang@lge.com)
More edits for ui module kinds. Enyo-DCO-1.1-Signed-Off-By: Jim Tang (jim.tang@lge.com)
Trying to force a line break.\n Enyo-DCO-1.1-Signed-Off-By: Jim Tang (jim.tang@lge.com)