Gallery model lastUpdated STAT and default theme gallery list view

![gallery-list](https://s3.amazonaws.com/diigo/7153990_179294210_11350169?AWSAccessKeyId=0R7FMW7AXRVCYMAPTPR2&Expires=1378776003&Signature=71Gs88cXBATQaIYlYjEwGEne2UY%3D)