CLOUDIFY-2413 modify manager-rest so it can run under gunicorn
CLOUDIFY-2413 fix copy resources under travis
CLOUDIFY-2413 add explicit versions for pyyaml and gunicorn and extract configuration to a file
CLOUDIFY-2413 add support for gunicorn based manager-rest in bootstrap script
CLOUDIFY-2413 pass config path env var + flake8 changes
CLOUDIFY-2413 fork parent process to deatach
CLOUDIFY-2413 test if file_server is the cause of all my problems
CLOUDIFY-2413 file_server small tweaks
CLOUDIFY-2413 one more attempt
CLOUDIFY-2418 flake8
CLOUDIFY-2413 small changes
Merge pull request #133 from CloudifySource/feature/CLOUDIFY-2413-gunicorn-setup

gunicorn modifications to manager-rest