Filter data for items that shouldn't have it and filter wool.

We used to fall Item.filterData() for this but that method is meant for
converting item data to block data during placement and does the wrong
thing for this case. Instead we just see if the item should have data and
if not set it to zero. We also have to filter wool data explicitly because
clients crash when given invalid wool data.
Filter negative values for all items.
Comment out vanilla debug message.
Allow data on tool items. Fixes BUKKIT-3773
Add new DispenseBehavior files from mc-dev for diff visibility.
Fire BlockDispenseEvent for new dispenser behaviors. Fixes BUKKIT-3774
Handle double trapped chest inventory. Fixes BUKKIT-3772
Allow special crafting data value on items. Fixes BUKKIT-3780
Add missing getOwner method for container minecarts.
Merge remote-tracking branch 'upstream/master' into sakura150