ixus1000_sd4500:
	- 101a support
	- filewritetask support
	- loader code update
add ixus1000_sd4500 101a to camera_list.csv
a3200 improvements: extended video recording time + long exposures bugfix by nafraf: http://chdk.setepontos.com/index.php?topic=7180.msg106760#msg106760 ;
CHDK custom palette implementation, fix detection of movie recording state, fix shutdown() function
tested on 100d
fix lua drawing bug, from waterwingz in http://chdk.setepontos.com/index.php?topic=10875.msg106788#msg106788