Required a lot of changes to provide at least a decent attempt at proper
editor teardown control.
Also updates HtmlDescriptionFilter and testing to address issue with bad
child iteration which could lead to missed items.
Renamed editor version from comments to basic as it'll also be used for
item descriptions.
- Added reference indicator to comment create form.
- Added remove action.
- Extracted reference text to translations.
- Changed reference hash to be text-based instead of HTML based.
- Added reference display for newly added comments.
- Handled reference marker delete on comment delete.
Started support for editor view.
Moved comment elements to be added relative to content area instad of
specific target reference element.
Added relocating on screen size change.
