This helps us not break when transitioning to using the new version of
snapstack, with the config files for each snap in the individual
steps, rather than in a config step.
Change-Id: I9b06966dcadffd92d4006c184067f744f57613aa
Part of a transition to storing the config files in the snap, rather
than in snapstack.
Also updated .gitignore to ignore emacs temp files and snapcraft
cruft.
Change-Id: Ic32b6e6b3665db9a43878b91c9288a408c8a8c0e
Switched to using cirros images rather than ubuntu cloud images, as
they are smaller, and thus better for testing. They should also go
through the zuul reverse proxy.
Update env variables to work with the tweaks to snapstack.
Change-Id: I989f1d2eacefebd2a72f75897e09b2c8b9e856ef
Tweaked tox.ini to invoke snapstack, and added test_snapstack.py to
tests dir.
Also added glance.sh to glance/tests, as part of the plan to move
those scripts from snap-test to the individual snaps.
Change-Id: Ifbd53392c394ee36cf61d1a07dba825f7b7097b8
Corey Bryant