LAS-41 LAS-44 LAS-45 LAS-46 Bugs fixed

-exception, if XML is generated from a class, where service methods
throw unhandled exceptions, so the developer can fix it
-while invoking, warnings are created, so the caller knows, what might
have been the problem (currentlyif requested/accepted MIME-Types are
wrong)
-support for @ContentParam for @PUT
-If there is a conflicting URI path, an exception is thrown