Support mobile / touch interactions

[chriskwan]

It would be great to use this on a phone or touch screen device.

[chriskwan]

There are some event placeholders but the touch events aren't working right. Need to actually read about how to deal with touch.

[chriskwan]

I fixed the touch events 👍 but looks like support for WebRTC (which is what PeerJS uses) on mobile is very limited 👎

See: http://caniuse.com/#search=webrtc

So it doesn't look like there is currently a good solution for iOS 👎

Though, Lily tried Chrome for Android and it worked! 💯

I also tried http://www.openwebrtc.org/bowser/. It gets a PeerID but when trying to connect, I get a different error:

PeerJS:  ERROR Error: Failed to set remote offer sdp: Called with SDP without DTLS fingerprint.
peer.js:1476 
PeerJS:  Failed to setRemoteDescription,  Failed to set remote offer sdp: Called with SDP without DTLS fingerprint.