Log Message:
Update to 2.3:

* Mon Dec 25 2006 Eric S. Raymond - 2.3-1
- Work around a bug in db2man.xsl.  Implement Markus Hoenicka's
  requested behavior for multiple-file conversions. Implement
  translation of groff extended .cc and .c2 requests.  Ignore
  the .TA macro that occurs duplicatively with .ta in X.org
  manual pages.  Cope with unresolved .Sx refererences in mdoc.
  Handle .Ex and .Ee.  Cope with X consortium macro preamble better.
  .RS/.RE is now fully handled, no more spurious warnings.

* Sat Jan 15 2005 Eric S. Raymond - 2.2-1
- Have manlifter create subdirectories and the xslfragment
  only in batch mode.  Use current list indent on block start/end.