og 6.x-1.0-rc5

Changes since DRUPAL-6--1-0-RC4:

• Updated POT for translation
• Updated German translation with new strings
• #283846 by mkonk64. fix email customization for non default languages.
• #287298 Fix the theme registry such that it becomes possible to override the node-og-group.tpl and node-op-group-post.tpl.php template
• #269946 by david_g and moshe weitzman. move code into a new og_views module and as a result, don't depend OG on Views.
• #289639 by moshe weitzman. don't save old_ variables to the DB.
• #169226 by WorldFallz. Add og_actions module to OG download.
• #290766 group admins were missing their powers when og_access disabled. reworked og_is_group_admin(). as a result, we no longer require that the group node be authored in the default input format.
• #290294 by hass. string fixes for translations.
• #290426 by Amitaibu. Integration with rules module.