SX50 palette fix from waterwingz.
http://chdk.setepontos.com/index.php?topic=650.msg98196#msg98196
Ixus 125 ports from nafraf:
http://chdk.setepontos.com/index.php?topic=650.msg98224#msg98224
SX50 update from waterwingz:
http://chdk.setepontos.com/index.php?topic=650.msg98232#msg98232