Added mayaauto.MayaTestCase
Fixed some inspection problems, and support PYTHONPATH not being set.
Default port is 0, for safety.
Added first version of handshake config and failing tests. Not working, but need to eat dinner!
Reworked everything to use bootstrapping and handshakes. No more hard-coded ports at all. Will add them back in later.
Moved handshake tests into test_system
Moved statuscodes and envvars into common.py
Removed unused imports