It would be great to be able to use the pubDate of the entries with the --template option of importfeed.

Text.Feed.Query has a getItemPublishDate (and a getFeedPubDate, if we want some kind of ${feeddate}).

The best would be to allow a reformating of the date(s) with (for example) %Y-%m-%D

> itempubdate was added years ago and I forgot to close this,
> but I've now also added itempubmonth, itempubday, etc. [[done]]
> --[[Joey]]
