Changeset 7162 for code/branches/presentation3/src/modules/pickup/CollectiblePickup.h

Significant structural changes to the pickup module. Lots of bugs found and fixed.
Introduced a new class CollectiblePickup (which is now the only kind a PickupCollection can consist of) to solve some issues cleanly.
MetaPickup received additional functionality. It can now also be set to either destroy all the pickups of a PickupCarrier or destroy the PickupCarrier itself. (This was done mainly for testing purposes)
I've done some extensive testing on the pickups, so they should really work now.