card layout for organizations
fixed template window cancel button so that it wont save changes
disabled template change button in config window while template_change action is still running
added a data loss warning to the change template window
fixes
new name scheme for new elements
better name scheme
added custom welcome message for new users
new user registration message to admins is now also configurable
Merge pull request #743 from t-gerhard/template_fix

Template fix
Merge pull request #746 from t-gerhard/name_scheme_for_new_elements

Name scheme for new elements
Merge pull request #747 from t-gerhard/welcome_message

Welcome message
Merge pull request #730 from t-gerhard/organization_cards_layout

card layout for organizations