11 Jul 1202 (13 Jul 2018):  Added the catcitations
environment, which inserts appropriate spacing before and
after a citations section.  Also added \catcitationsbefskip
and \catcitationsaftskip, to allow controlling how much
space will be skipped.  Version 2.1.

11 Jan 1202 (13 Jan 2018):  Complete rewrite of the package;
much simpler and cleaner.  Added \catexplic command.
\citetitle was replaced by \catcitetitle, to avoid
inevitable naming collisions.  \scripture is now simply an
alias of \catcite, with a view to eventual deprecation.
Version 2.0.
