Added information basically related to newer protocol (EOS 20D),   especially remote control subcodes 0x1b/0x1c; also added a bit on D60.
Added information basically related to newer protocol (EOS 20D),
  especially remote control subcodes 0x1b/0x1c; also added a bit on D60.


git-svn-id: 40dd595c6684d839db675001a64203a1457e7319@7719 67ed7778-7388-44ab-90cf-0a291f65f57c

thusoy/libgphoto2,thusoy/libgphoto2,msmeissn/libgphoto2,jbreeden/libgphoto2,jbreeden/libgphoto2,gphoto/libgphoto2,jbreeden/libgphoto2,thusoy/libgphoto2,gphoto/libgphoto2,gphoto/libgphoto2,msmeissn/libgphoto2,gphoto/libgphoto2,gphoto/libgphoto2,msmeissn/libgphoto2,gphoto/libgphoto2,jbreeden/libgphoto2,thusoy/libgphoto2,msmeissn/libgphoto2,msmeissn/libgphoto2,thusoy/libgphoto2,jbreeden/libgphoto2