Support None responses in results.
Make warning a proper warning, not a print-to-stdout side effect.
Remove unused import.
update wercker titan box
Merge branch 'master' of github.com:platinummonkey/rexpro-python
Merge pull request #10 from nvie/master

Support None responses in results
version bump
Merge branch 'master' of github.com:platinummonkey/rexpro-python
Order imports (using isort).
Always return connections back to the pool.

This caught us badly in a long-running process where a bunch of failures accumulated, which led to the connection pool filling up.  The processes using the connection had ended, and new processes could not acquire any of the connections, effectively deadlocking the processes.

This patch makes sure that connections are always put back into the pool at the end of the context manager's body, even in case of failure.
Merge remote-tracking branch 'platinummonkey/master'
Merge pull request #11 from nvie/master

Fix: always return connections back to the pool
Version bump
added additional test case for FullDouble.class serialization, relates to issue #12
Merge branch 'master' of github.com:platinummonkey/rexpro-python into platinummonkey-master

Conflicts:
	rexpro/connectors/base.py
Merge branch 'platinummonkey-master'