A not very satisfactory (and perhaps broken) solution to the cow problem. Will have to revisit in the future but seems stable at the moment. More testing is needed, please contact GLaDOS.
A few optimizations came out of it anyway. The hose fills tanks properly, the Bookshelf looks cooler, a few cycles are shorter. and some abilities behave better.
The creeper backpack now only fizzzzzes when near another player, no more "fizzzzz" when alone.
Inventory now properly syncs now, so when taking stuff from NEI it should appear in the inventory while the backpack GUI is open.
Closes (or attempts to close) Issue #13