RMG - Note why it is that MAINT is version-bumped late rather than early

Thanks to Nicholas Clark for pulling this reasoning from his memory banks.
RMG - Even RCs these days generally get an epigraph
RMG - Remove out-of-date instruction about epigraph link

Thanks to the revelation of the X-List-Archive header (see 70d95cc994) we
no longer need to add the epigraph link on the day after.
RMG - RCs are now listed in perlhist