OG details block to use the proper l() API from Drupal 6 core.

#467514. Call to undefined method stdClass::set_display() in ... og_views/og_views.module on line 64.

Significant patch by Moshe Weitzman. Please backup your database before upgrading ... Improve DB integrity. Factor the is_public column out of og_ancestry table and into a new og_access_post table that is 'owned' by og_access module. Add primary key to og_ancestry to prevent duplicate entries. Requires a visit to update.php. Customized Views which relied on the is_public column will need to be fixed in the Views UI. Views that ship with OG are unaffected.

#349399 Remove group notification block. This has to be provided by OG Notifications at some point and/or by contrib modules.