Added bagWidth and bagHeight to item db
Added bag support to item command
Added saving and loading of bags
Added unimplemented msg for shaped bags
Added check for dropping filled bags
Added unquipping bags
Added looting into bags

Add and Insert now try to put items into the inventory or any bags that
exist.
Added auto adding of bag pockets
Fixed unequipping bags

It was possible for items to be readded to the bag they came from, which
kinda defeated the purpose.
Merge remote-tracking branch 'origin/item_bags'
Merge branch 'master' of https://github.com/aura-project/aura