refactored out the generic command blob send and received. made magic buffer sizes more generic in several instances.
refactored out the generic command blob send and received.
made magic buffer sizes more generic in several instances.


git-svn-id: 40dd595c6684d839db675001a64203a1457e7319@8167 67ed7778-7388-44ab-90cf-0a291f65f57c

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