Merge pull request #1 from byeager/patch-1

cleaned up a typo in readme.md
We only have six videos per page, so we can make themlarger
Reorder width/height
Better text in missing thumbnails
Unnest success callback with Deferred API
Give function a more suitable and general name
Simple app which just picks a random thumb
Load thumbnails from a Swift or from a zapp
Extract thumbnails for real