Deprecated JBoss cache and uber-webapp modules

Deals with https://github.com/Jasig/cas/issues/627 and https://github.com/Jasig/cas/issues/628

This should also be noted in our release notes and possibly posted to the lists as well. 
I have asked IntelliJ folks to explain this to me :) For some reason, the IDE likes to reformat things for no particular reason, other than to group stuff around in an order that it likes. If you can point me to a setting that would turn this off, I'd be happy to oblige.