Ensure that object creation workflow (renames from x.iso-date to x) is handled.
Tidy up docstring.
Prefix strings explicitly.
Ensure that physical_path is set for the leaf path element when invoking ensure_ancestry_to,
in addition to (re)setting it in update_security_info (if may have changed between invokations).

Prefix strings explicitly.
Provide ability to override generation of the folder id being created by _create_folder()
Pass arguments to plone.api as keywords as recommended by the plone.api docs.
Fix workflow state transitioning when dexterity-default contenttypes are in play.