libglusterfs/statedump: move options file and statedumps from /tmp

Change-Id: I6b107b9a668b0521b955dba8895cbbeaf9e7cb02
BUG: 764890
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/5005
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>