#249 Created as modified

* fills modified attribute on new entries with created value automatically
* adds default ordering by last modified on table overviews

compensation/forms/compensation.py

@@ -156,6 +156,7 @@ class NewCompensationForm(AbstractCompensationForm,
             title=title,
             intervention=intervention,
             created=action,
+            modified=action,
             is_cef=is_cef,
             is_coherence_keeping=is_coherence_keeping,
             is_pik=is_pik,