Mike Fährmann aac00a2024
add 'd' conversion for format strings
to convert a timestamp to a formattable 'datetime' object.

For example '{created_at!d:%Y-%m-%d}'
transforms the timestamp in 'created_at' into a 'datetime' object
and then formats its content using '%Y-%m-%d' as template.

1262304000 -> datetime(2010, 1, 1) -> "2010-01-01"
2021-01-09 01:58:44 +01:00
..
2015-10-03 14:51:13 +02:00
2020-12-08 21:05:47 +01:00
2020-12-27 17:41:08 +01:00