Added logpage target to generate the chronologically sorted global change
log in HTML format. This requires a Perl script (create_changelog.pl).
Added config.h to dependencies and stuff
Removed special targets for yacc and lex files. Thanks to Andreas Heiduk,
it is now possible to compile all files with -W -Wall and no extra defines.
Moved regexp library to a subdirectory regexp
Some modifications on the source file macros which now differentiate
between files which are listed in the HTML change log and files which aren't.
Moved from yacc to GNU "bison --yacc"
No longer linking with flex library
Activated -Wall -W for parser.y
Removed -DYY_NO_UNPUT from lexer compilation (now done via file option)
