Add slideshow to single exhibits page

Removed two column layout on single-ksasexhibits.php page for
horizontal image slider. Images now uploaded via admin and attached to
specific exhibit.
Template Sort & Description Parsing

Now sorting template-exhibitions by date, DESC. As ecpt_description was
parsed into _full and _short, added _short field
Added Quicksearch Functionality

Quicksearch Functionality was missing from app.min.js. Added it to
parts-script-initiators.php file with Conditional tag. Also added
Exhibits scripts to file; removing from the single-ksasexhibits.php