Modified to enhance the hover effects for videos

	modified:   css/default.css
	modified:   index.html
	modified:   js/gvidoc.js

Using a new image instead of a Font Awesome

	new file:   watch.png
Enhanced some JS and CS

	modified:   css/default.css
	modified:   index.html
Merge branch 'master' of https://github.com/netdotter787/youtube-clone