Release 1.0.0
Release 1.1.0
Release 1.2.0
Merge branch 'release/v1.2.1'
Merge branch 'master' of github.com:PixarAnimationStudios/OpenSubdiv into dev
bug fixes for Gregory Boundary patches in cpuEvelLimitKernel.cpp
bug fixes to cpuEvalLimitKernel.cpp (use unsinge ivalence in the correct places)

minor code cleanup

Note : there is still a resilient bug in the Gregory Boundary patch case
Merge branch 'dev' of https://github.com/PixarAnimationStudios/OpenSubdiv into dev