Add one more misbehaving bot, copy full bad_browser list to gitblit

Change-Id: I0880a89b8dc9fd339e83121d2209e8c10cd68e42
Simplify our puppet master setup.

This patch reconciles Stafford and Sockpuppet somewhat, so that
their puppet file structures are the same.  Now both will have
a git repo in /var/lib/git/operations/puppet with a checkout
of the private repo in /var/lib/git/operations/puppet/private.

Links are created in /etc/puppet for the puppet master to rely on.

On sockpuppet, the post-merge hook will now update stafford
and also force an update of submodules.

Change-Id: I1a90164b9664eb4d5a553d4e312aed6930cb89a8
Merge "Add one more misbehaving bot, copy full bad_browser list to gitblit" into production