Specify Team Horizon as primary reviewer(s).

Change-Id: I2f095f77370b8cf4f77ae6c3d331d41aa4c7b827
Add jenkins slave binary

So our external buildboxes can distribute to jenkins

Change-Id: Id22bc8422267e4e281862dd3420604b32875d3a8
Redo the whole reviewer thing - doesn't like group names

Use email addies instead
Change-Id: I90f3b35bb3ec65936867eadaedcd4819c40c41d6