Need test coverage for errors during wait period

[stuarteberg]

It just occurred to me that I'm not quite sure what happens in one (relatively minor) corner case: If a Python client encounters an exception while waiting for the resource, what happens? We should add a test case at some point.

client = ResourceManagerClient(mgr_ip, mgr_port)
with client.access_context( resource, False, 1, 1000 ): # What happens if an exception happens
                                                        # here, say, a KeyboardInterrupt?
    do_stuff_with_resource()