Fixed case where lead player only has hearts
game hidden on load
Alert hidden on load
Added ability to mute mic

You can click on the local video to mute the microphone
Fixed bugs with video connection

Now only the newest player tries to call other peers. This should make
calling a little less buggy. Still need to allow callers to try to
reconnect and mute other players
Added calls to a global dictionary

Calls were being garbage collected after a while (I think.) This
should fix the problem.
Prevented scrolling and zooming