glusterd/geo-rep: Not setting the user name as the user group by default

Also removing multiple mounts in gverify.sh

Change-Id: I1567a9f711222c5f571a12f7c4ab49cef32d60c9
BUG: 1101948
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/7911
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kotresh HR <khiremat@redhat.com>
Reviewed-by: Venky Shankar <vshankar@redhat.com>
Tested-by: Venky Shankar <vshankar@redhat.com>