New release: 0.64.0

[Marc Worrell]

Release 0.64.0
==============

Welcome to Zotonic 0.64.0, released on March 4, 2022.

This is a maintenance release.

Main changes are:

* Add Instagram Javascript to the sanitizer whitelist.
* Show username and last logon date in the admin on the user's page and in the user lists.
* Better support for additional URLs in the SEO sitemap table.


Commits since 0.63.0
--------------------

Marc Worrell (7):

* Fix an issue where the allowed predicates of a subject did not change when its category was updated. Fixes #2791
* seo_sitemap: fix a problem where resources were not final-checked for inclusion in the sitemap.
* Allow www.instagram.com/embed.js in the sanitizer.
* In the admin show information about username and last logon.
* mod_filestore: add simple test function to test the filestore connection.
* seo_sitemap: add m_seo_sitemap:delete_before/3. (0.x)
* seo_sitemap: add index on modified. Add sql timeouts.
* Fix a problem where heart restarted Zotonic after a zotonic stop command. Fixes #2715

Rob van den Bogaard (2):

* Merge pull request #2874 from zotonic/0x-m_seo_sitemap-delete_before
* seo_sitemap: add notification at sitemap rebuild for custom indexing (#2894)