Refactor patching to use git merge
This pulls in changes that we've been doing in client and workstation and will unify how we patch and maintain auditor. This specifically does the following:
- Removes packagecloud deb/rpm deployments (This will be on the OSL mirror soon instead)
- Import a build.sh to ease development
- Refactor patch.sh to use git merge patching
- Remove old patch files
- Update rubygems.sh to use packagecloud