Fix Corrupted Trapped Chest

The CraftBukkit code that auto repairs corrupted tile entities never was updated for Trapped Chest.
If a Trapped Chest gets its Tile Entity corrupted, it will crash the server every time the chunk is loaded.

This will now fix Trapped Chests too.
Don't time async events
Fix empty `ench` tags being wiped by the meta system.
Add Hunger Config Values
Make debug logging togglable.
Upstream merge
Skip invalid enchants in CraftMetaItem

Its a rare case but when loading a world from a modded server which added enchantments
CraftMetaItem would add a null enchantment into the enchantment map which causes
NullPointers later
Only close if we are actually placing a block
Revert "Only close if we are actually placing a block"

This reverts commit ea0b1b2d67d49f26d7ec5b7208e1f367f61cb54f.
Update IRC channel to irc.spi.gt
Optimize TileEntity Ticking

Re-organizes the servers TileEntity Tick List to be bucketed based on their tick interval.

We now will not even store a Tile Entity that is known to not have any tick function
(half of them), skipping time spent iterating them and checking if they are valid
and in a loaded chunk. In other words, a lot of "meta" time wasted on tile entities
that would never do anything anyways.

Then by reducing chests to 1 in 20 ticks, we cut out 95% of isLoaded checks and findPlayer
calls on chests, and 100% of the checks for Signs, the 2 most popular Tile Entities.

This cuts out a massive amount of checks revolving around TileEntity ticking.
Servers with large amounts of TileEntities should see significant improvement.

Finally, this then spreads out the ticking of reduced-rate TileEntities so that they
do not all tick on the same tick, distributing the load of some TileEntities like Chest.