Add queue sync on remote devices.

Add queue operations are reflected now all
devices participating in the same application session.

Jira issue: APPWTV-48
Merge pull request #43 from mlasak/APPWTV-48

Add queue sync on remote devices.
Adds qrcode for eased widget download directly from repo.
Merge pull request #44 from mlasak/qr

Adds qrcode for eased widget download directly from repo.
Update README.md
Update README.md
Update README.md
Merged from upstream