tests: take regression tests out of autotools

make run-tests.sh "location independent" and replace 'make install'
with cpio in glusterfs.spec.in

Change-Id: I140473c7f558e1e0af93a863b79098ced516a76b
BUG: 764966
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/5986
Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
Tested-by: Gluster Build System <jenkins@build.gluster.com>