Textures for Fusion Fluids
Add tabs to Fuel and Heat GUIs to get to the other one.
Add a Creative Energy Cube that's always half-full so it can sink or provide arbitrary amounts of energy.
Fix trying to use IC2 EnergyNet without IC2 installed. It would never work anyway.
Merge branch 'master' into development
Merge branch 'development' into 1.8
Fix a small advanced solar placement bug.