handle git dependency
venv is should not be set only in case of PFS
only active git proposal is suitable for PFS deployment
moved dashboard_path onto main body
Merge pull request #106 from MirantisDellCrowbar/feature/pfs-ui/roxy/master

https://github.com/crowbar/barclamp-nova_dashboard/pull/106

Merged by devtool for ArkadyKanevsky