Log Message:
Update to 2.1.1:
- display-x(7): Perform correct overflow check when setting up the
  backbuffer.
- display-x(7): 8bit palettized mode now works
- mode regression fix: allow testcase3 to also test on other targets than
  display-memory
- mode regression: add testcases to test mode re-setting and for
  braindamaged physical size
- ggiOpen(3): do not call va_end() twice.
- display-sub(7): Add a warning/important paragraph to the manual:
  GGI_DEFMODE env.
  variable may override the top,left corner when it is (0,0).
- display-dga(7): make it work again. Patch from urz (IRC).
- display-fbdev(7): fix crash/hang-on-exit. Fixes SF Bug #1097754. Patch
  from urz (IRC).
- display-directx(7): fix checking and setting a mode with braindamaged
  physical mode size
- documentation: move deprecated ggiSet*Mode(3) functions to their own
  manpage
- display-tele(7): various bugfixes, update manpage