Check number of arguments to ssh_exec and do the right thing
Merge remote-tracking branch 'origin/develop' into feature/support-older-loom

Conflicts:
	provisioner/worker/plugins/providers/fog_provider/lib/fog_provider/rackspace.rb
Merge pull request #350 from continuuity/feature/support-older-loom

Check number of arguments to ssh_exec and do the right thing