v5.5.4 Beta #4

*Default minecraft ISidedInventory support in all machines.
*Fancied up Universal Cable texture.
*Electrolytic Separators and Bio-Generators use LiquidTanks instead of
LiquidSlots.
*Fixed IInventory support.
*Fixed Universal Cable BuildCraft crash.
*Added the Electric Pump, a machine that can pump any kind of liquid
and automatically outputs into adjacent pipes.