add version numbers to Obsoletes
    
    The ceph-devel and python-ceph packages were split out, but there were
    no version numbers added to the Obsoletes during the split.
    
    This means that we obsolete packages that are far newer than us. This
    impacts packages coming from upstream's "gitbuilder" system (for
    example), as well as any other upstream RPMs until this package split is
    done upstream.
    
    Add version numbers to the Obsoletes. I've chosen to use a
    version+release number that's lower than what we currently ship in EPEL
    (0.80.7-0.4), but newer than what we shipped in the last EPEL update
    (0.80.5).