Log Message:
Changes 1.3.3:
* ANTIC mode 2 + GTIA mode 10 - half pixel shift fix
* Amiga port updated
* OS/2 port updated
* DOSVGA port updated - joystick definition read again
* X11 port has improved keyboard support (Ctrl+Pause, left Ctrl for joy button)
* SDL port updated: joysticks emulated on keyboard can be freely edited
  now with SDL_JOY_0_<direction> and SDL_TRIG_0 (same for JOY_1/TRIG_1)
  config file parameters that expect values from SDL keySyms.