- Moved ChatClientContext to org.ualerts.chat.service.api
- Modified MockUserService to inject ChatClientContext versus ChatClient
- Organized imports for ChatClientContextInterceptor,
RosterAddedController, SockJsHandler due to ChatClientContext move
- Refactored NameCheckController to use UserService 
- Added UserService bean to ualerts-chat=servlet.xml
Moved wiring of ChatClientContext from web layer to MockUserService to
service layer.
Removed ChatClient class variable from MockUserService
Merge pull request #40 from ualerts-org/updateNameCheckControllerToUseUserService_ACE-78

- Moved ChatClientContext to org.ualerts.chat.service.api