alembic/alembic — pull request #6 by lamiller0 (2014-10-03 21:12:32+00:00)
Title: AbcExport patch from Daniel Rolinek on behalf of Tippett.

1. only create face sets for shading groups applied with with per-face mappings
2. no longer produce an error for meshes without valid per-face mappings, e.g. whole object mappings
3. recognize "faceVaryingInterpolateBoundary", not "faceVaryingInterpolateBoundary" as the control attribute for the related alembic property.