Updated the example castor.conf accordingly.
Removed reference to now gone repackd in castor.conf example.
Removed unused entried in rtcp_constants.h and replaced rtcpd_constants.h by constants in tapeserver/daemon/Constants.hpp.

The ProcessForker can impose "entire lifetime" or "per mount"
refreshes of CASTOR configuration-parameters.  There is no
need for the tapeserverd parent process to do this and send
the results over the wire.