Autoload fuse module in centos5/el5 versions.

This patch dynamically load 'fuse' module with the installation
of glusterfs-fuse package in centos/el5 distributions.

Change-Id: I4988a025bd18716fd6d355431196540e140224b3
BUG: 1108669
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
Reviewed-on: http://review.gluster.org/8116
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Lalatendu Mohanty <lmohanty@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>