Added promo video & design tweaks

Added the promo video with fitted.js.
Misc. design adjustments.
Removed the dynamic window height js.
Added Media Advent - ! email.php not working

Added Interactive Media Advent however the email feature of Advent
Clips isn’t operational yet
Fixed Conflicts

Conflicts:
— main.css
— site.js
— index.php
Advent and Email Adjustments

Revised advent media messaging.
Fixed email functionality, emails send, but without attachments.
Merge branch 'dev'