* data/lalr1.java (Stack): Work around old verifiers that disallow
access to the private fields of an inner class, from the outer class.
We can make Stack's fields public because user code doesn't have access
to the instance of Stack used by parse().
* data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
Complain if the value does not match empty, "true" or "false".
* data/c++.m4: Adjust default definitions of %define variables.
* data/java.m4: Adjust default definitions of %define variables.
* doc/bison.texinfo (Decl Summary): Adjust the %define entry according
to above behavior.
* tests/input.at (Boolean %define variables): Test new behavior.
* NEWS: Mention java.
* TODO: Remove things that are done.
* bootstrap.conf: Add javacomp-script and javaexec-script.
* configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
* data/Makefile.am: Add new files.
* data/java-skel.m4: New.
* data/java.m4: New.
* data/lalr1.java: New.
* doc/bison.texinfo: Put "A Complete C++ Example" under
C++ Parsers. Add Java Parsers. Put C++ Parsers and Java Parsers
under Other Languages.
* src/getargs.c (valid_languages): Add Java.
* src/getargs.h (struct bison_language): Update size of string fields.
* tests/Makefile.am: Add java.at.
* tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
* tests/java.at: New.
* tests/testsuite.at: Include it.
* data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
b4_define_user_cde and uses): Remove.
(b4_comment, b4_prefix, b4_sync_start): New.
* data/bison.m4: New file, with most of the content removed from c.m4.
* src/muscle_tab.h: Use "do {...} while(0)" throughout.
* src/output.c (output_skeleton): Pass bison.m4.
(prepare): Pass glr_flag and nondeterministic_flag. Pass prefix
only if specified.