Updated IC2 API, modularized energy management
Merge branch 'master' of https://github.com/aidancbrady/Mekanism

Conflicts:
	common/mekanism/api/GasNetwork.java
	common/mekanism/common/EnergyNetwork.java
	common/mekanism/common/FluidNetwork.java
	common/mekanism/common/InventoryNetwork.java
	common/mekanism/common/TileEntityEnergyCube.java
	common/mekanism/generators/common/TileEntityGenerator.java