ignore errors on informational service status

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
(cherry picked from commit 5b946e1a6df8b7f80001f5176435eb36b12711e3)
use 'mon create-initial' always

But don't error if it fails, as this would mean that the monitors
are just taking longer to form quorum. Go and try the next block which will
wait up to 15 minutes for a successful gatherkeys to happen (that only works
if monitors have formed quorum).

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
(cherry picked from commit 70a1f18adfdf673b983cc7f5f2c78abb899001c7)