Add _EditableListMixin using declare.safeMixin() so destroy() works correctly - Eric Durocher (IBM, CCLA).!strict.
Add _EditableListMixin using declare.safeMixin() so destroy() works correctly - Eric Durocher (IBM, CCLA).!strict.

git-svn-id: ee6e786acc44c9cca5ee17c71a5576c45c210361@29845 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful