Log Message:
Update to 1.6.4:

Adam Jackson (3):
      man: Don't mention the HAL
      dri: Stop (uselessly) initializing the ValidateTree hooks
      undef DISABLE_VGA_IO

Matt Turner (1):
      xf86-video-mga 1.6.4

Mikulas Patocka (3):
      xf86-video-mga: set the pan_ctl register
      xf86-video-mga: fix a lockup in the mga driver
      fix a type in previous lockup in the mga driver fix