edits to video modules

markup on video modules changed to reflect new UI
[#58051344]
Changing markup to use HTML5 video tag

I think we should be using the video tag instead of an anchor. I should
have done this before. The poster attribute displays a thumbnail image,
I put it in there as ng-poster for now. Please advise?

Left the earlier code in, just commented out. [#58051344]
flip