Fix for twitter style onscroll pagination

Ref to this issue I had The page loads with a show_more link at the end. When show_more link is clicked, it's loading the next page of items via ajax but this doesn't happen automatically as it should be when we set paginateOnScroll:true. [StackOverflow Question](http://stackoverflow.com/questions/18082640/how-to-enable-load-on-scroll-in-django-endless-pagination) here