You can now partition islands into build sections.
Added the option to color glue flaps (two sided aswell).
Transparency setting for the island rendering in 3D view.
Added the option to hide cut edges in 3D view.
When trying to create a papermodel from a non-manifold mesh, there is now a button that allows you to select all non-manifold vertices (just for convenience).
Bugfixes / Improvements:
The automatic page layout algorithm now uses area minimizing bounding boxes of islands (this might save you some paper).
Fixed a bug where the automatically chosen model scale made some pieces not fit on one page.
You can now choose a custom paper size for your papermodel instructions.
Added a "triangle bleed" setting to the texture settings tab. Adjust this value to balance visible gaps between triangles and visible seams due to overlap.
Getting in line with blenders addon design philosophy
All data for paper model editing is now stored in custom properties of Mesh objects.
Operators can instantiate a paper model object from an active meshes properties, perform operations on the model and write back to Mesh properties when finished.
Removed most python globals (except some handles for rendering)
Removed the modal Zamboni editing mode operator. Editing the paper model can now be done directly in mesh edit mode.
Added an operator that removes all automatically generated cuts (replacing the auto cuts toggle).