Improvements:

* Builder "Needed" list now shows exact amount of required blocks on hover (asie)
* More Builder optimizations (asie)

Bugs fixed:

* [#3056] PipeTransportFluids crash (asie)
* [#3055] Redstone Engines not heating up (asie)
* Builder anti-hack system bug (asie)
* Fluids in builder GUI not rendering correctly (for real this time!) (asie)
* Hollow facades using wrongly calculated ambient occlusion (asie)
* Leaves and saplings having issues when built (asie)
* Random crashes with integrated server tile entity lookup (asie)