module documentation

Compatibility tests between Dulwich and the cgit server.

Warning: these tests should be fairly stable, but when writing/debugging new
tests, deadlocks may freeze the test process such that it cannot be Ctrl-C'ed. On POSIX systems, you can kill the tests with Ctrl-Z, "kill %".
Class GitServerSideBand64kTestCase Tests for client/server compatibility with side-band-64k support.
Class GitServerTestCase Tests for client/server compatibility.