ArchaicFix is licensed under the LGPL3, however, the occlusion culling module is directly derived from CoFHTweaks, itself derived from Minecraft 1.8. As such that component is not considered to be under LGPL3. Please refer to its LICENSE for more information.
Please also refer to my discussion with skyboy regarding inclusion of this component.
Classes within the zone.rong.loliasm namespace are taken from LoliASM and used under LGPL 2.1.
Classes within the ca.fxco namespace are from MemoryLeakFix, licensed under LGPL 2.1.