CLOUDIFY-2012 added python-vagrant to test dependencies
CLOUDIFY-2022 make fabric runner indempotent to local and remote env
CLOUDIFY-2022 added fabric runner tests
CLOUDIFY-2022 install test dependencies and ignore remote machine tests when running on travis
CLOUDIFY-2022 no real need for yield + refactor common logic to init file
CLOUDIFY-2022 fix file creation and only init host string if installing on a remote machine
CLOUDIFY-2022 added tests for installing the worker
CLOUDIFY-2022 add worker installer remote tests to travis exlcude
CLOUDIFY-2022 try installing latest celery version