* Makefile.comm (CLEANNOTSRCDIRADD): New target for files which

* Makefile.comm (CLEANNOTSRCDIRADD): New target for files which
should be removed only if builddir is not srcdir.
(mostlyclean): Handle `CLEANNOTSRCDIRADD'.
(clean): Depend on `mostlyclean'.
(distclean): Depend on `clean'.
(realclean, extraclean): Depend on `distclean'.
(.y.cc, .y.o): Simplified.  The output files are no longer written
to srcdir but to builddir.
* Makefile.in (MDEFINES): Add `version' and `revision'.
(uninstall_dirs): Fix order of directories.
* doc/Makefile.sub (version, revision): Removed.
(CLEANADD): Removed grnexmpl.g, groff, groff-*.
Added `HTMLDOCFILES'.
(CLEANNOTSRCDIRADD): New target for grnexmpl.h, groff, groff-*.
* contrib/mom/Makefile.sub (uninstall_sub): Don't use `momdocdir'
but `htmldocdir'.
Add missing backslash.
* src/preproc/eqn/Makefile.sub, src/preproc/pic/Makefile.sub,
src/preproc/refer/Makefile.sub (YTABC, YTABH): Don't use `srcdir'
as prefix.

* doc/texinfo.tex (\authortt): New macro.
(\shortcontt): Define.
(\titlepage): Set \tt to \authortt while defining \authorfont.
(\appendixbox): New macro.
(\chapmacro, \appendixentry): Use \appendixbox to get even
indentation for letters.
(\summarycontents): Set \tt.
(\internalpagesize): Add two arguments for real paper width and
height as needed by pdfTeX.
(\letterpaper, \smallbook, \afourpaper, \afivepaper, \afourlatex):
Updated.
(\tempdima, \tempdimb): New temporary dimensions.
(\pagesizesyyy): Updated.