ceph.spec: split ceph-devel to appropriate *-devel packages

ceph.spec: split ceph-devel to appropriate *-devel packages

ceph-devel contains various header files/bindings for several
libraries, this patch creates *-devel packages for all the libraries
separately and provides the compatibility layer for the split.

http://tracker.ceph.com/issues/10884 Refs: #10884

Signed-off-by: Boris Ranto <branto@redhat.com>
Amended by Ken Dreyer <kdreyer@redhat.com> to add version numbers to the
Obsoletes, add Obsoletes to the libradosstriper1-devel and
libcephfs_jni1-devel subpackages, adjust the librados documentation, and
add the Redmine issue number to this commit log.

Signed-off-by: Ken Dreyer <kdreyer@redhat.com>