Add ability to unhide repeating dates in list view
Presently if there are multiple events available on the same date in the list view, the date is not shown for each event. This can lead to confusion and make it look like the date is missing if it is not common for multiple slots to be available on a date.
It's presently hard coded so that the date div is removed. This makes it difficult for admins to be able to override this behavior via css or filters to show the date if they wish.
