Example site layout updates.

I've modified the example site to improve the usability. The remote videos will be displayed in the entire left side of the screen, keeping with the row/column format originally used but with some fixes in the calculations. 

The right side consists of the buttons, the local video, and the chat screen. 

The chat screen no longer toggles, that might be added back in later. It's important to note that the chat screen has been kept small to show that the site is more about the video conference than the chatting aspect.

Remote audio has been muted when videos are created due to annoying echos during local testing. It can be re-enabled by right-clicking on a video and pressing the unmute option. The local video cannot be unmuted.