removed unused plugin
Merge pull request #197 from cloudnull/issues196

Removed unused FWaaS plugin
converted nova to use repo_packages
Merge pull request #194 from cloudnull/convert-nova-repo-packages

converted nova to use repo_packages
Convert heat to use repo_packages

This change converts heat to use repo_packages.  Similar changes have
been done in nova / keystone in PRs #194 and #198 and will eventually
be applied to all OpenStack services that we deploy.