v0.12.0

• Spec version 1.2 includes new edge assignments (cuts and joins), new frame attributes, vertices_edges and faces_faces definitions, null values, and adds lots of clarifying text.
• API renamed filter.cutEdges → filter.splitCuts, which now automatically splits all cut edges (from FOLD 1.2) into regular boundary edges (from FOLD 1.0/1.1).
• API adds filter.cutEdges and filter.joinEdges to list all cut and join edges respectively.

Full Changelog: v0.11.6...v0.12.0