Cinc omnibus patches

This pulls in changes that were originally in the client repository. The idea is that we can easily rebase the changes here from upstream and merge any future conflicts more easily.

Some other notable changes:

• Update omnibus Gemfile to use a patched version of omnibus-software which includes changes in the chef software and adds our rebranded chef-zero
• Add support for Angry Cinc Client (useful for our build infrastructure)
• Update Copyright to add "Cinc Project" to attribute our edits