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: Ib5aaae0baca80d396d7517a597e7d897de8075e5
This is 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: Ic08196c14649ed27178453335935acc7ea990455
Tweaked tox.ini to invoke snapstack, and added test_snapstack.py to
tests dir.
Also added nova-hypervisor.sh to nova-hypervisor/tests, as part of the
plan to move those scripts from snap-test to the individual snaps.
Change-Id: I2e0363d361893a899b6cd4e4683e6d14bac1a0ed
