rpm: package /var/run/gluster so that statedumps can be created

Creating statedumps fail when /var/run/gluster does not exist. This
directory should be part of the 'glusterfs' package that is installed on
storage servers and native clients.

Merged Niels's change from both $HEAD and release-3.3

BUG: 917554
Change-Id: I6ffc497c0bb6bc90c97a91a72bba9118853d4c8c
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/4659
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>