Changes with Aloha.Editor 0.24.21

Bugfix RT57862

The sanitize contenthandler configuration is now loaded, even if it is set as a map.

If a configuration in Aloha.settings.contenthandler.sanitize was defined, this was never loaded unless
it was a text (‘restricted‘, ‘basic‘, ‘relaxed‘). If a map of objects was defined, this setting was
never loaded (see
With this fix, the sanitize object is loaded.

Bugfix RT57925

Dragging and dropping a table inside another table is not permitted.

Nested table are forbidden, but dragging and dropping tables inside tables
were permitted. With this fix this behavior is not allowed anymore.