Another batch of fixes

Remove client side call in Item.getCreativeTab - Fixes #917
Use Forge logic for dropping items from entity death Fixes - #518
Reworking the forge chunk loader stuff a little bit to fix BC quarries - Fixes #885 #358
Load chunks on provide for world gen -- fixes RP2 volcano oddness
Backport of fix from 1.5.1 branch - Fixes #835
Decrement bonemeal count - Fixes #884
Check for empty inventory view before raising it as an event - Should fix #276 (log spam)
Note: This doesn't send InventoryCloseEvents for special mod inventories, so any mod relying on it might not work correctly