Functional Tests
- Refactored concrete class names and associated tests
Changed the method name in ChatService to be findDefaultConversation
Cleaned up code in ConcreteChatClient, added test for no-arg constructor
in ConcreteChatServiceTest and combined the expectations in the
testDeliverMessage method of ConcreteConversationTest
Merge pull request #2 from ualerts-org/createFunctionalTestsForServiceAPI_ACE-26

Completed Functional Tests