title: Yii show all pages in pagination
body: <p>I'm using yii framework. For example, in one table I have 400 rows. In admin view, where CGridView is I have 20 rows per page (20 pages). In my pagination I have number from 1st to 10th page. When I go on 15th page, I have 10-20, But I want to show all pages under my CGridView (from first to last).</p>
  
  <p>I don't think that I should copy some code, because I think this is some option, but I didn't find it in yii documentation.</p>