HTML/javascript video client for assignment 1

Pull request for HTML/javascript client for assignment 1, per your request here: https://class.coursera.org/mobilecloud-001/forum/thread?thread_id=270#post-1265.

![client](https://cloud.githubusercontent.com/assets/1552229/3731933/1e2e87ea-16f4-11e4-9987-b198eafd605e.png)