Cards: Remove colorbox.js and supporting materials.
Cards: Update template.html to newer styles.
Cards: Style tweaks for images and fullscreen cards.
Cards: Add js includes for main app, and card-hacks
Cards: Add card-hacks.js
 - Includes js calls for fullscreen cards and briefing slideshow. 
 - Will eventually be rolled into CMSApp when cards ported to CMS.
Cards: Index page updates.