handle git dependency
venv is should not be set only in case of PFS
only active git proposal is suitable for PFS deployment
check for venv more strictly
 update crowbar.yml to get havana bits
Merge pull request #122 from MirantisDellCrowbar/feature/pfs-ui/roxy/master

https://github.com/crowbar/barclamp-keystone/pull/122

Merged by devtool for ArkadyKanevsky
fixed wsgi template according to havana example
Merge branch 'pr' into feature/havana-pkg/roxy/master
havana is stable
Merge pull request #125 from MirantisDellCrowbar/feature/havana-pkg/roxy/master

fixed wsgi template according to havana example