Add current date as publication date for new Blog post documents

After installing the Blog feature: if you create a new Blog post document the Publication Date field has a default value of March 6, 2014. It is better to populate it with the current date. Howto is described on page 1): look for $now on that page.

Nice side effect: the document will then show up in the facet navigation based on that date too.

1) https://www.onehippo.org/library/concepts/document-types/template-queries.html