clean up Virtual
cleanup vpn support

TODO: settings addon
clean up pulseaudio
clean up Cuboxi
clean up RPi
clean up ATV
clean up buildsys (arm/powerpc/i386 nonsense)
remove package: opengl-mali
clean up mysql
clean up userspace dvb "drivers"
clean up RTL8*
remove package: tbs-linux-drivers
clean up iscsi support
clean up netboot support
more clean up and set nonoptional defaults
clean up splash
clean up installer
clean up orphaned packages
clean up SDL