Fix the pagination issue with up-and-coming themes (bug 944096)

Sadly, I need it that way to be able to use [the filter](https://github.com/mozilla/olympia/pull/213/files#diff-0b53c1c92b5fde634d1eb678b3756d54R290) the right way™ BUT this is the default sorting/filtering so even bookmarks should still work!