updates in preparation for new image
wheezy-stage4-lxde-edu: install mathematica
wheezy-stage4-lxde: install xserver-xorg-video-fbturbo
wheezy-stage3: install v4l-utils
wheezy-stage4-lxde-edu: only install mathematical on raspbian
wheezy-stage4-lxde-edu: install timidity
wheezy-stage4-lxde-edu: install Oracle java from archive.raspberrypi.org