Removing TestConnection, Starting fixes for AsyncServiceClient

Fixes #13 .  This totally removes the crappy TestConnection I wrote a while ago that uses blocking sockets, and now just uses an AsyncServiceClient.  Some tests are still ignored because of #19 , and the test referenced in #4 just needs to be redone.
no, the test is broken at the moment, thought it may have been timeout related but this is because of the problems with AsyncServiceClient