Lars Kruse 4bc330944a Allow override of date format
Previously the default date format (`January 2, 2006` ) was used for
blog and single page date visualizations.

The new parameter `date_format` can be used to override this format.
This allows the visualization of localized dates or a changed precision
(down to the minute or up to the month or year of publication).
2020-06-14 03:28:40 +02:00
..
2020-06-14 03:28:40 +02:00
2018-04-09 12:33:10 -04:00
2020-06-03 16:26:29 -05:00
2020-06-14 03:28:40 +02:00
2017-04-15 09:06:30 -04:00
2017-04-15 12:31:22 -04:00