Temporary possible workaround fix for a vehicle crash.
Added 2 new utils, added an option to make crush pistons kill entities,
and made BetterPistons entity detection flawless.
Added a sign copying mechanic, using an inksac. (Left = paste, Right =
copy)

Also made a few random performance improvements.
Few random changes to how mechanics are handled.
CraftBook 3.6b3 changelog.
Fix a few ST related bugs with IC's.
Replaced the ArrayLists in Mech Manager with HashSets, this should stop
duplicates from occuring.
Add furnace and brewing stand support to InventoryUtil, and implement
InventoryUtil into Container Collector.
Performance improvements and bug fixes for Cooking Pot.
Added option to make cooking pot destroy buckets.
Added equals and hashcode to CookingPot, making it impossible for
duplicate mechanics to occur.
Added equals and hashcode to IC's, to make sure it is impossible for
duplicate instances to occur.
Bug fixes for Chest Stocker IC.
Workaround for bukkit lever update issues.
Made SignCopier actually work with IC's etc.
Fixed ParticleEffect offset being way off
Made SignCopier cancel the block break/place.
Make ParticleEffect not do offset by default
Small change to RedstoneNetherrack
Remove the weird division in SoundEffect.