A clan vault can store up to 100 items, and these items are saved in the
vault, and will still be there after a copyover/shutdown/crash/etc...

Items that have been tagged as clan items, will automatically be moved in
to your clans vault if these items are ever lost. i.e. You droped an item
and you left the room which this item is in.

HINT: vaults can be used to store complete clan sets. i.e. putting an entire
level 20 equipment set in a level 20 bag, and storing this bag in the vault,
would only count as 1 item of 100.

WARNING: if your vault is full, lost items will NOT be returned to your
vault, and these items may be permanently lost!!!!