OpenStack projects are no longer being tested under Python 2.6, so
remove the trove classifier implying that this project supports 2.6.
Change-Id: I5c3610f0122712f32ac98cc5d859ee9d79e74990
Add a setup.cfg and setup.py and fill in those files
so that gertty can be installed easily.
Adjust gertty.py to have a main function that
can be referenced as a console entrypoint during
installation.
Also adjusted a bunch of imports that were failing after
installation occurred (but now they should not fail since they
correctly reference the gertty module namespace).
Change-Id: I532ced51583b26300ba9a2efb97f8e41bc69ec8d
Zuul