data-provide="markdown-editable" is intended for inline editing of page
content à la contenteditable. When this is applied to a textarea, the
editor is loaded only after the user clicks on the field. This behavior
breaks focus and is incompatible with keyboard navigation.
Fold one-used event_status_icon and one-used booth_status_icon into
status_icon, used twice; since there is no conflict on the status-
driven description.
