This patch re-enables the geo-rep test cases. Along with it does following optimizations. 1. Use EXPECT_WITHIN instead of sleep 2. Clean up geo-rep ssh key after test 3. Changes to gverify.sh and S56glusterd-geo-rep-create-post.sh to use the given ssh identity file for geo-rep create 4. Make gluster-command-dir configurable and introduce slave-gluster-command-dir which points the parent directory of gluster binaries in master and slave respectively. Change-Id: Ia7696278d9dd3ba04224dcd7c3564088ca970b04 BUG: 1480491 Signed-off-by: Kotresh HR <khiremat@redhat.com>