CFY-1688 imports versions for dev.
Merge branch 'master' into CFY-1688-manager-blueprint
CFY-1688 updated setup.
CFY-1688 updated setup and requirements.
CFY-1688 temporary work around: using subprocess in setup.py for installing the softlayer-python forked repo.
Merge branches 'CFY-1688-manager-blueprint' and 'master' of https://github.com/cloudify-cosmo/cloudify-softlayer-plugin