init-radosgw.sysv:  New radosgw init file for rpm based systems

Signed-off-by: Gary Lowell  <gary.lowell@inktank.com>
Makefile.am:  Add new init-radosgw.sysv to tarball.

Signed-off-by: Gary Lowell  <gary.lowell@inktank.com>
ceph.spec.in:  Add ceph as a dependency for radosgw package.

The init-radosgw.sysv script uses the ceph-conf utility which is
in the ceph package.  Add ceph as a depdendecy for radosgw.  Also
remove the -x from the init-radosgw.sysv script.

Signed-off-by: Gary Lowell  <gary.lowell@inktank.com>