#64 Remove title from bibliocomponent.mix

[Norman Walsh]

Former RFE 83

This RFE completes the shift from Title to CiteTitle in
bibliocomponent.mix.

In 4.0, warn that Title will be removed from
bibliocomponent.mix in 5.0.
In 4.0, warn that the content of CiteTitle will be
changed (reduced)
from para.char.mix (which inappropriately allows
synopses) to
title.char.mix.
In 5.0, make those two changes.