Update class-admin.php

Internationalization of "Posts" in the Screen Options tab in the Bulk Title/Description Editor pages.
Update class-admin.php

Add fix `return $status;` for saving screen-options per_page in other plug-ins. 
http://pippinsplugins.com/add-screen-options-tab-to-your-wordpress-plugin/comment-page-1/#comment-136450
Update class-admin.php

This way will always return $status.
Merge pull request #1047 from designerken/master

Update class-admin.php