jobs/Linux/quakeforge: add /usr/local/bin to build PATH

- quakeforge needs a newer 'bison' than what comes with Debian
  'squeeze'; an updated 'bison' is available in '/usr/local/bin', add
  that directory to the PATH environment variable when running the
  configure step, so the newer 'bison' is picked up by the configure
  scripts
projects: Added Quake-only and All idGames project files