- Merge PLSFactory into PLSRenderContext
5294bb6 - Tentative fix for initializer list thread race condition
850bc8b - Delete the copy constructor from Mat2D
01f752a - Treat all Constraints and ClippingShapes differently than children when propagating collapse
6d01a95 - Improve collapse propagation for solo.
8d510c7 - early out of advance if we are not going to keep goign
55f9825 - Don't collapse child constraints of Solos
7c9b660 - Add a "clipRect" feature to PLS
a9ddc38