Issue #1998360 by wundo: og_user_access documentation is not marking optional parameters as optional
Merge branch '7.x-2.x' of git.drupal.org:project/og into 7.x-2.x
Issue #1992430 by wundo: og_ungroup documentation is currently wrong
Issue #1911738 by balagan: The overriden title in view og_user_group is '%1 groups'
Issue #1993486 by rlmumford: Errors if a User account has no permissions for a particular group.
Issue #1784118 by DuaelFr, Amitaibu: "Required" not enforced for Group Audience fields using new complex OG widget
Issue #1995504 by danylevskyi: Fixing optional parameters docs in og.module
Issue #1997278 by joachim: missing docs for og_get_all_group_bundle()
Re-export Message from OG-example.
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