Remove debug print.
HOW MUCH DOES ZODB STINK!?
Patch subprocess with gevent to prevent blocking.
Add Docker build for gitreceive service.
Add gitreceive plugin and tests.
Allow resetting the context.
Properly commit transaction after interface use.
Shutdown background greenlets on exit.
In gevent, we have to wait() after subprocess.

Or *sometimes* the process isn't done yet and the return code None.