og 7.x-2.0-alpha2

Changes since 7.x-2.0-alpha1:

• Remove obsolete CTools code from og-context, regarding extracting group info from entity.
• Use entityreference-prepopulate module to determine og-context on node create URL (e.g. node/add/%node?og_group_ref=1).
• #1463546 by itamar | marshallexcavating: Overhaul UI links for editing roles and permissions.
• #1465838 by quicksketch: Added Rename OG UI permission labels and descriptions for clarity.
• #1464962 reported by head: Fixed typo in bundle keys in og_register_query_og_alter().
• Better migrate plugin names for 7.0 and 7.2
• Upgrade also group-bundle in og_7200_roles().
• If the entity belongs to a bundle that was deleted, return early.
• Add group-audience to user entity, on og_migrate_create_fields().
• Don't re-execute migrate plugin, unless requested explicetly, or not executed successfuly.
• refs #1423278: Make og_7200_og_membership() more robust, and not fail on non-existing entity or groups.
• Slightly better variable name in og_create_field().
• Follow up Issue #1449582: Pass correct role Id to delete function.
• #1449582 by jgraham: Fixed notice when removing group field from a content type set as group type.
• followup #1444516 by RoySegall: Add test to setting to auto-assign role to group manager.
• Make sure the role is valid in og_role_grant().
• #1444516 Add setting to auto-assign role to group manager.
• target_type was removed from entity referene schema.