Added slider and play/stop functionality.
Added slider and play/stop functionality.

Also got rid of extra whitespace from spritz.js.

raymond-w-ko/Glance-Bookmarklet,GlanceApps/Glance-Bookmarklet,Miserlou/Glance-Bookmarklet,GlanceApps/Glance-Bookmarklet,Miserlou/Glance-Bookmarklet,raymond-w-ko/Glance-Bookmarklet