Improve events for new inventory features.  Adds BUKKIT-3859

This commit brings the InventoryClickEvent up to date with the new Minecraft
changes in 1.5.

InventoryDragEvent (thanks to @YLivay for his PR) is added to represent the
new "dragging" or "painting" functionality, where if you hold an itemstack and
click-drag over several slots, the items will be split evenly (left click) or
1 each (right click).

The ClickType enum is used to represent what the client did to trigger the
event.

The InventoryAction enum is reserved for future expansion, but will be used to
indicate the approximate result of the action.

Additionally, handling of creative inventory editing is improved with the new
InventoryCreativeEvent, and handling of numberkey presses is also improved
within InventoryClickEvent and CraftItemEvent.

Also, cancelling a creative click now displays properly on the client.

Adresses BUKKIT-3692, BUKKIT-4035, BUKKIT-3859 (new 1.5 events),
BUKKIT-2659, BUKKIT-3043, BUKKIT-2659, and BUKKIT-2897 (creative click events).
Fix creative ArrayIndexOutOfBoundsException. Fixes BUKKIT-4305

When a Player drops an ItemStack while in creative mode by placing it outside
of their inventory window, the slot number in the packet is -1. The check
that was added to avoid throwing InventoryCreativeEvent excessively didn't
take this into account, and would cause an ArrayIndexOutOfBoundsException to
be thrown when attempting to get the slot specified by the packet.

This change shorts the invocation of player.defaultContainer.getSlot(
packet107setcreativeslot.b) to only occur if the slot id is within the range
of the Inventory.  This prevents attempting to get the slot from a location
that is actually outside of the Inventory.
Update blaze breathe sound. Fixes BUKKIT-4286
Spigot
EMC POM changes
Misc EMC Changes

Only spawn 1 ocelot ever from eggs.
Load custom permissions before plugins
Unload plugins after everything else
Remove CraftBukkit "Feature" of ItemStack's having infinite use if less than 0 stack size.
Color name tags to match list
Make Durability enchant scale 0-80% reduction on Armor damage (up to level 5)
Zombies break down doors on normal
Update inventory on block place/interact cancellation
Mob Spawning Events

Add 2 events for better control of mob spawning (Natural and Spawners) This allows us a much more powerful control over spawning and improve performance
PlayerUseItem Event

This lets us control when an item is consumed and change the item.
EMC Anvil Tweaks

Make Items not have a repair cost increase due to Anvil usage.
Renaming is only 5 levels, combines include free renames.
Hidden Item Meta

This adds the ability to store hidden metadata in item lore.

Simply set a line to "&&::META" and every blank line before, that line, and every line after will be hidden from view on the client.

for example, you can set &&::META on line 20, and there will not be 19 blank lines before it.
Then you can store Data on 21+

Also adds a &&::SHINY tag to send a fake enchantment aura if it does not exists.
Must be set before META
NIOM - NIO Manager

Alternative to Netty
improve the existing network manager using Blocking NIO instead of IO (more effecient code)
Writes use a direct memory buffer for less copying, and more stable memory usage.

Reimplement Low Priority Queue
Optimized PacketQueue System that supports instant send notification to the writer thread
Removed packet queue walking since it will very unlikely ever be hit now.
Writer thread will now sleep longer until notified
Network threads are no longer interrupted every tick, letting them sleep as much as possible
Persistent Meta API

This adds an API for getting and setting PERSISTENT Metadata
Meta data can be stored on Entities, Chunks and at a Block level.
Meta is is provided in a simple Map/List setup and does not expose raw NBT access.
Chunk Save Reattempt

We commonly have "Stream Closed" errors on chunk saving, so this code should re-try to save the chunk in the event of failure and hopefully prevent rollbacks.
Keep certain items on death API

This adds a getItemsToKeep to PlayerDeathEvent that can be modified for what item a player should keep upon death.

This can be used for never-to-be-dropped items.
Anvil Event

Fire an event for anvil usage
ArrowHitBlock Event
Entity Spawn Events

These events fire any time an entity is added/removed to the world, so we do not
have to check multiple locations for entities being added/removed from the world.
Precise timings
Entity AI

This gives us control over some Entity AIe
This will be expanded as future needs.
Protect from crashes on oreb