Use cgit server instead of github for everything
Use cgit server instead of github for everything

We have a cgit server now, which means we should replace
all references to github with references to git.openstack.org.

Change-Id: I68ad1ce514fb4326c7d9940b5a84999af5b58562

open-switch/infra_puppet-meetbot,open-switch/infra_puppet-meetbot