- replace SDL key handling, which used hardware-dependent scancodes, with   hardware-independent SDL keysyms.
- replace SDL key handling, which used hardware-dependent scancodes, with
  hardware-independent SDL keysyms.

marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet