- Restored the wait constructor flag to keep trying if a connection
  fails.
- Restored the recv_timeout for test backward compatibility.

- Restored the test handle-management mechanism for test
  backward-compatibility.

- Fixed a bug in the way test machinery used internal handles.
Restored the create_recursive method for backward compatibility.
Removed some junk.
Merge pull request #5 from zopefoundation/compatibility

Backward compatibility.