* .gitignore: Add GN build-system patterns.
* AUTHORS,
ChangeLog,
Makefile.am,
NEWS,
autogen.sh,
build-aux/config.rpath,
build-aux/git-version-gen,
build-aux/gitlog-to-changelog,
build-aux/pre-inst-env.in,
configure.ac,
doc/.dirstamp,
doc/fdl-1.3.texi,
doc/scmackerel.info,
doc/scmackerel.texi,
doc/stamp-vti,
doc/version.texi,
examples/local.mk,
scmackerel/local.mk,
test/local.mk: New files.
* GNUmakefile: Remove.
* README: Add intro and contact info.
* scripts/scm2lts: Support --help, and --version.