* admin/unidata/Makefile.in (maintainer-clean):
Instead of removing macuvs.h here ...
(extraclean): ... Remove it here.
* admin/unidata/uvs.el (uvs-print-table-ivd):
Add to comment explaining why macuvs.h is in Git.
* src/macuvs.h: Regenerate and re-add to Git.
It can be generated automatically and easily during a normal
bootstrap, so there’s no need to keep it in the repository.
* admin/unidata/Makefile.in (maintainer-clean):
Behave like extraclean and remove macuvs.h etc.
* src/macuvs.h: Remove.
* admin/unidata/IVD_Sequences.txt: New version from
http://www.unicode.org/ivd/, the 2017-12-12 version of the Unicode
Ideographic Variation Database.
* src/macuvs.h: Regenerated.
* admin/unidata/IVD_Sequences.txt: New file.
* admin/unidata/Makefile.in (${top_srcdir}/src/macuvs.h): New rule.
(all): Build it.
(extraclean): Remove it.
* admin/unidata/README: Mention BidiMirroring.txt and IVD_Sequences.txt.
* admin/unidata/copyright.html: Update to current version from Unicode
Consortium.
* admin/unidata/uvs.el: Rename from admin/mac/uvs.el.
(uvs-print-table-ivd): Output a header in the form that
unidata-gen.el generates.
* lisp/international/README: Refer to the Unicode Terms of Use rather
than copying it bodily here, as that simplifies maintenance.
* src/Makefile.in ($(srcdir)/macuvs.h): New rule.
* src/macuvs.h: Use automatically-generated header.
