Changes:
- Fix – Incorrect slug when News Feed is set as default Wall tab
- Fix – Invalid regular expression at /includes/wall-hooks.php
- Fix – Formatting with site preview in activity streams
- Fix – Sitewide Activity Stream not visible if News Feed is selected from Settings
- Fix – On activity page when clicking on groups or mentions leads to a 404 error
- Fix – The hover response when multiple people like something not working correctly
- Fix – The Widget "Most Liked Activity" is not displaying for all the users on BuddyPress pages
- Fix – PHP notices
- Localization – Russian translations updated, credits to Airat Halitov