More Serializate and MarshalByRefObject mappings added to TM objects
More api helper methods on TeamMentor_Objects_Proxy_ExtensionMethods_TM_Objects and API_TeamMentor_WatiN_ExtensionMethods
Fix for https://github.com/TeamMentor/Master/issues/812

With first proper unit test that uses the new UnitTest capability to access directly the TM objects to test (and to run the tests in an isolated TM instance)