MC Version 1.4.6

Reverts mc version setting to 1.4.6 so 1.4.6 plugins still work
Remove Duplication Vulnerabilities

Remove CraftBukkit "Feature" of ItemStack's having infinite use if less than 0 stack size.
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.
Use 1.4.5 Dig Speed

1.4.7 Client is still expecting 1.4.5 Dig Speed
Only spawn 1 ocelot ever from eggs.
Load custom permissions before plugins
Re-enable low priority queue, use on all chunk sends
Reduce compression to save CPU time
Fix map in itemframes lag.
Enable Improved ping sending
Proper colors in console

ANSI color codes now reset text attributes. Fixes BUKKIT-3508

The client resets all formatting after a color code is received, but currently the ANSI codes do not, and so the console does not accurately reflect the appearance of the formatted text. Instead, the ANSI color codes are now set to reset all text attributes.
Unload plugins after everything else
Combination of portal fixes

This is a combination of fixes of pull reqs for Portal changes BUKKIT-3541, BUKKIT-3555, BUKKIT-3559, BUKKIT-3542

Plus my own fix to Eds patch about default PTA
Metrics is not severe
Fix livingentity collision reduction
Timings improvements
Entity Activation Range

This feature gives 3 new configurable ranges that if an entity of the matching type is outside of this radius of any player, will tick at 5% of its normal rate.

This will drastically cut down on tick timings for entities that are not in range of a user to actually be "used".
This change can have dramatic impact on gameplay if configured too low. Balance according to your servers desired gameplay.