Fixed fences being replaced by leaves.
Spindles no longer stack  and cannot be repaired by crafting together
Fixed some nextInt() off-by-one errors.
Replaced all Blocks.air checks with isAir() for better compatibility.

Should fix inability to till random soil blocks when Railcraft is installed.
Fancy Spawn Egg Colors! :D
Creative Tab Organization.
Localization Organization
Added nutrient tool tip to seeds. Only visible with at least expert agriculture skill (same as using nutrient hoe mode).
Decreased speed that crucible inputs single liquid unshaped metal units for easier precision. Increased speed that crucible outputs into molds.
Disabled Hemp Seeds. Note: This will result in a Forge Mod Loader error when you first load up your existing worlds. It is perfectly safe to hit "Yes"
Fixed Iron Age Achievement not triggering.
Added a few more null and NullPointerException checks.

NEI and other mods should not be producing NullPointerException errors
anymore, and should render all items correctly.
Fixed armor stands not dropping armor when "killed"
Fixed Quiver Duping. Fixed picking up skeleton arrows/javelins when wearing a quiver.
Prevent creepers, spiders, skeletons and zombies from spawning in leaves and thatch blocks.
Fixed, zombies had a chance of dropping vanilla tools.
Fixed leaves replacing sequoia trunks on generation.