Set envdefault to 2.9.1 and make user admin usable in tests

Change-Id: Id56f6e862494ed07d48f286a94ae9194fdfd3343
Signed-off-by: Ron Peters <blod.og.ild@gmail.com>
update gerrit ports for 2.9.1

Change-Id: I3cd184b2c98c8df8ea336bdf9a4d57faf5b55abd
add gerrit 2.9.1 instance

Change-Id: Id4177f47fb9121e468458c762fb3ec1d4fa541da
add gerrit 2.9.1 instance (keeping 2.8.5)

Change-Id: Ib893fce671df2bee1d771a8420bdd005fcc24182