groff.7: repair Unicode documentation, add preproc regions
gpinyin: make it runnable.
* m.tmac (misc@tag): Fix horizontal position.
Problem reported by Blake McBride <blake@mcbride.name>.
grog: add gpinyin, restructure SEE ALSO
roff.7, groff_filenames.7: add and repair about heirloom
addftinfo.1: restructure file format, but keep content
groff_font.7: restructure man-page, but keep content
roff.7, groff_file_names.7: macros for authors and copying; more actual links for Heirloom
PROJECTS: Add TODO for refer
In groff source top directory add Emacs settings for most text files.
All Makefile* files: add Emacs setting and GPL2 license (only if lacking)
All Makefile* files: add Emacs setting and GPL2 license (only if lacking)
refer: try to create a groff directory for refer under /usr/local/share, does not work so far
Remove Emacs coding setup in documentation files on top groff source.  Repair some copyright years.
remove auto4te.cache manually; also mention this in .gitignore
In groff top source dir, change copyright years from start to actual year
groff top source dir: remove all "Last update" entries.
arch: license and Emacs setup
contrib/chem: license and Emacs setup
contrib/eqn2graph: license and Emacs setup