Restore CentOS support enforcing 7.0
Merge pull request #271 from ares/master

Restore CentOS support enforcing 7.0
Version bump
bz 1126072: deploy one compute host, then the rest

This requires a db migration and then re-running seed data before
testing the change
missed the migration in the initial commit
Fix autoreload issues in development mode
"first compute alone" functionality is only needed for nova
Merge pull request #273 from sseago/compute-deploy-sequence

bz 1126072: deploy one compute host, then the rest
Merge pull request #274 from ares/master

Fix autoreload issues in development mode