* drop filter_content_types parameter of Folder.newContent
 * revert previous patch to ERP5/Document/Domain.py
 * add 'Domain Generator' to allowed content types of 'Base Domain'

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@21596 20353a03-c40f-0410-a6d1-a30d3c3de9de