- update to 3.3.4:
* Avoid re-downloaing non-expired favicons
* Increase network-monitor changed signal timeout
- update to 3.3.3:
* local rss: handle articles that are published with the same GUID by
multiple feeds (eg planet.gnome.org)
* local rss: use etags to skip downloading unchanged feeds
* local rss: avoid writing unchanged articles to the database (feed-rs fix)
* log running/successful database migrations
* improve favicon and thumbnail download logic
* fix drag and drop regression in feed list
* article list: load queue to avoid data races
* multiple ping urls for online checks
* online check: try to reach backend server before falling back to generic urls
* add back unread/starred database indices
* re-enable full text search in article plain text