[buddy] configure.ac: Switch from Libtool 1.5.x to Libtool 2.x, and add an AC_CONFIG_MACRO_DIR call.

    * configure.ac: Adjust to call...
    * m4/intel.m4: ...this new macro.

* examples/calculator/, examples/internal/: Were renamed as ...
* examples/bddcalc/, examples/bddtest/: ... these.
* configure.ac: Adjust version and output Makefiles.
* examples/Makefile.am (SUBDIRS): Adjust subdir renaming.
* examples/cmilner/milner.c, examples/fdd/statespace.cxx: Were
renamed as ...
* examples/cmilner/cmilner.c, examples/fdd/fdd.cxx: ... these.
* examples/cmilner/Makefile.am, examples/fdd/Makefile.am: Adjust
accordingly.
* src/Makefile.am (AM_CPPFLAGS): Define VERSION.

* src/kernel.h: Include it.
* src/Makefile.am (AM_CPPFLAGS): New variable.

examples/Makefile.am, examples/Makefile.def,
examples/adder/Makefile.am, examples/calculator/Makefile.am,
examples/cmilner/Makefile.am, examples/fdd/Makefile.am,
examples/internal/Makefile.am, examples/milner/Makefile.am,
examples/money/Makefile.am, examples/queen/Makefile.am,
examples/solitar/Makefile.am, m4/debug.m4, m4/gccwarns.m4,
ChangeLog, INSTALL: New files.
* config, makefile, src/makefile, doc/makefile,
examples/adder/makefile, examples/calculator/makefile
examples/cmilner/makefile, examples/fdd/makefile,
examples/internal/makefile, examples/milner/makefile,
examples/money/makefile, examples/queen/makefile,
examples/solitare/makefile : Delete.
* examples/adder/adder.cxx, examples/fdd/statespace.cxx,
examples/internal/bddtest.cxx, examples/milner/milner.cxx,
examples/money/money.cxx, examples/queen/queen.cxx,
examples/solitare/solitare.cxx: Include iostream.
* examples/calculator/parser.y: Rename as ...
* examples/calculator/parser.yxx: ... this.  Remove spurious
comas in %token, %right, and %left arguments.
* examples/calculator/parser.h: Rename as ...
* examples/calculator/parser_.h: ... this, because the bison
rule with output parser.h (not tokens.h) from parser.y.
* examples/calculator/lexer.l: Rename as ...
* examples/calculator/lexer.lxx: ... this.  Include parser.h
instead of tokens.h.
* examples/calculator/slist.h
(voidSList::voisSListElem, SList::ite): Fix friend usage.
* src/kernel.h (DEFAULT_CLOCK): Default to 60 if not already
defined.
* README: Update build instruction, and file listing.