change gluster to use LATEST

bumped release to 9-1 and added appropriate changelog.

Change-Id: I5711f1d558ec4d4869913f2c9b48cde0a4153e04
Signed-off-by: Mike Burns <mburns@redhat.com>
Signed-off-by: Sandro Bonazzola <sbonazzo@redhat.com>