Update documentation and add todo file.
Add development and test buildouts (plone 4.1 / 4.2).
Add configure.zcml.
Add content creation package.
Update todo.
Creation: implement json source.
Creation: implement import step and simple transmogrifier import configuration.
Creation: reindex objects and make a savepoint.
Creation: workflow transition support.
Creation: implement properties updater.
Creation: implement constrain types updater.
Creation: implement interfaces updater.
Creation: implement file inserter.
Creation: enable criterion adder.
Creation: implement placeful workflow policy updater.
Creation: add documentation.