Rename function for controlling AF LED in MD test script.
Fix benchmark crash on older cameras from srsa_4c:
http://chdk.setepontos.com/index.php?topic=650.msg96965#msg96965
Fix script initialisation of console size from lapser
http://chdk.setepontos.com/index.php?topic=265.msg96971#msg96971
Update for motion detector to ensure all cells sample the same number of points.
http://chdk.setepontos.com/index.php?topic=9437.msg96974#msg96974
Re-write console code to use a static buffer instead of multiple calls to malloc/free to avoid heap fragmentation.