a3300: correct zoom related definitions, fix MakeAFScan address for 100d; http://chdk.setepontos.com/index.php?topic=9797.msg116114#msg116114
add support for powershot N facebook edition 100a - from waterwingz in http://chdk.setepontos.com/index.php?topic=650.msg116101#msg116101
ixus140_elph130 - fix jpeg distortion correction not being applied and zoom keys not working after set_zoom
ixus140_elph130 - remove label