Typos, refactor out DX integration layer to tests.dx
Add debugging tools.
Add p.a.contenttypes, DDCT to instance part.
Use api.portal.get_tool to get shadow tree util.
Rename control panel view.
Add tests for uninstall
Add tests for controlpanel configlet that allows for manual synchronisation of shadowtree.
Make the shadowtree tool utility a true site-local one (should not be registered as a global ZCA utility in configure.zcml)
Add more tests, ensuring coverage of both AT and DX variants where applicable.
Removed setuphandlers since import step no longer required.