Removed WPDK call to enqueue admin scripts and styles on front end.
 I can't see why they are needed on front-end and they are messing up DMS/Pagelines and other bootstrap UI plugins
Updated CSS for media viewing page.
 centered video player frames
 fixed gradients on media description boxes.
Cloned Prosilver style for customizations.

removed 3-column page as well.  we'll be replacing with DMS