new features:
* glilypond(1) - new preprocessor for music typesetting
* gperl(1) - new preprocessor for embedding Perl code in roff documents
* gpinyin(1) - new preprocessor to pretty-print Pinyin syllables
* groff_mom(7) now has full eqn(7), pic(7), and tbl(7) support
* mdoc(7) now supports the %C macro (already available in mandoc)
* various bugfixes
* many of our patches have been integrated upstream
* changing the bullet is no longer needed, mandoc can now handle it
ok sthen@ naddy@
545d4e77f7