Remove all occurrence of cjw in files
Datatype newsletterlist renamed in newslettereditioncontainer
Fix extenson name un setttings
Activate owmigration for cjw_newsletter
Create content classes newsletter_collections and newsletter_system
Set the icon for newsletter_collections content class
Add newsletter_collections content class in tree menu
Replace section by foreach or if
Create newsletter_mailing_list_collections content class
Format code
Fix subtree with several newsletter system
Create all required content class
Display newsletter collection subtree
Set content class icons
Remove files