Merge pull request #361 from galstrom21/folsom

repointing nova submod to current rcbops-cookbooks/nova folsom branch
Merge pull request #362 from galstrom21/folsom

repointing cinder submod to current rcbops-cookbooks/cinder folsom branch
Merge pull request #363 from galstrom21/folsom

repointing submods their folsom branches