gphoto bug 1

Summary: rsony library isn't setting image_type

gphoto 0.4.3 uses the image_type field in struct Image to create the filenames for saving images.

The rsony (dscf55) code doesn't set this field, so the filenames end up having garbage.

Easy fix, add this after line 813 to sony/dscf55/rsony.c:

         sprintf(image->image_type, "jpg");