* automake.in (scan_aclocal_m4): Do not parse ACLOCAL_AMFLAGS

* automake.in (scan_aclocal_m4): Do not parse ACLOCAL_AMFLAGS
and glob for m4_files (We've got all local m4 files while
tracing m4_include's).  Diagnose ACLOCAL_M4_SOURCES as obsolete.
Distribute aclocal.m4 only at the top-level.
(my_glob): Remove.  This fixes PR automake/11.
(handle_dist): Strip leading `./' from directories.
* aclocal.in (add_file): Output 'm4_include([file.m4])' instead
of copying local files.
(write_aclocal, parse_arguments): Bump copyright date.
* configure.in: De not build m4/amversion.m4 from here ...
* m4/Makefile.am ($(srcdir)/amversion.m4): ... do this here.
(nodist_m4data_DATA): Use $(srcdir)/amversion.m4 instead
of amversion.m4.
* tests/Makefile.am (XFAIL_TESTS): Remove aclocal5.test.
(TESTS): Remove aclocal2.test.  Do not test aclocal.test twice.
* tests/aclocal2.test: Delete (pointless).
* tests/aclocal5.test: Make sure configure's dependencies are
distributed.
* tests/acinclude.test: Adjust to search for m4_include.
* tests/dirlist.test, tests/dup3.test: Run $AUTOCONF and grep
configure instead of aclocal.m4.