Formatting.

Fix #46: Make backgroundScan default to true.

streamUrl -> stream

Removed usage of window.URL.createObjectURL(...) in favour of returning stream directly. This has been done, since createObjectURL has been deprecated (and using it breaks WebRTC functionality when using webrtc-adapter)

Add note about iOS non-compatibility.

Improve scanner options formatting.

Rename VideoAccessError to MediaError.

Update README to include getUserMedia error handling.

Add error handling to README example.

Remove old app. Update deployment commit message.

Add VideoAccessError to wrap errors from getUserMedia. Update demo to handle errors correctly.

Add Travis support with deployments.

Add demo link to README.

Do not make demo video fullscreen.

Fix camera name bug in demo.