tempest cleanup
cleanup and fix install.rb
update bin path
update to havana config syntax
fix venv
update crowbar.yml according to pip_reqs
Merge branch 'bug/pfs-havana/roxy/master' of https://github.com/MirantisDellCrowbar/barclamp-tempest into bug/pfs-havana/roxy/master
Revert "fix venv"

This reverts commit 71cf12241c19e8cd22c63706680904ed998f5280.
keep tempest operational in case of non-pfs
preparing ec2 and s3 test suite
miss some packages
redhat/centos support
for some reasons there is missed requirement
send stdout to stderr
Merge pull request #58 from MirantisDellCrowbar/bug/pfs-havana/roxy/master

tempest improvements