Move all helper scripts to build-aux/
* scripts/: Rename to build-aux/. * compile, config.guess, config.rpath, config.sub * depcomp, doc/mdate-sh, doc/texinfo.tex * install-sh, ltmain.sh, missing: Move to build-aux/. * Makefile.am (EXTRA_DIST): Adjust. * configure.ac (AC_CONFIG_AUX_DIR): New. (AM_SILENT_RULES): New.
- Signed-off-by: Werner Koch <wk@gnupg.org>