Improvements:
* Pipes are now much more conservative about causing chunk re-renders (asie)
* Rewrote fluid extraction pipe code to be more controllable (asie)
* The [BuildCraft] fake player UUID is now output to console logs (asie)

Bugs fixed:
* [#2616] Crash in specific usages of the Assembly Table (asie, TheLoneWolfling)
* Robots change color after picking up a leaf block (hea3ven)
