Now kolla dev mode only support clone master branch from git, add version tag to support clone dedicated branch. Change-Id: I88de238e5dc7461ba0662a3ecea9a2d80fd0db60
Allows users to develop on Senlin using Kolla. Partially implements: blueprint mount-sources Change-Id: I3523ab5638b8440050f538501f1b1a35270435cd