(HTCONDOR-264)  Add support for *-rc channels; add --yum-repo option for RPM-based systems.  Drop newly-incorrect chown of token.  Convert to using get_htcondor_* metaknobs.
(HTCONDOR-264)  Add support for *-rc channels; add --yum-repo option for RPM-based systems.  Drop newly-incorrect chown of token.  Convert to using get_htcondor_* metaknobs.

htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor