The following items were missing from an automated zuul install:
* A pre-populated known hosts file
* The git user/email for creating commits (.gitconfig existed
on zuul.o.o, but switch to using zuul's config file instead).
Also, make sure that the mergers specify the zuul server as the
gearman server address rather than localhost.
Change-Id: I47a473f60c4b5b2daaa910aa61cdf6e0c6fe1528
Remove obsolete config options from zuul module.
The server and merger classes are constructed so that they
may coexist on a single server. Also, the init section is
constructed so that it will install everything needed for
both services but without activating them (leaving maximum
flexibility for the operator).
Change-Id: I7b86fbbe4611c5edfb463a0a6944e0717f664188
