sb2: added comments about startup/shutdown of sb2d
sb2: added comments about startup/shutdown of sb2d

ldbox/ldbox,h113331pp/scratchbox2,h113331pp/scratchbox2,OlegGirko/ldbox,OlegGirko/ldbox,ldbox/ldbox,OlegGirko/ldbox,ldbox/ldbox,h113331pp/scratchbox2,h113331pp/scratchbox2,ldbox/ldbox,ldbox/ldbox,OlegGirko/ldbox,h113331pp/scratchbox2,OlegGirko/ldbox,ldbox/ldbox,h113331pp/scratchbox2,OlegGirko/ldbox