0.2.3

1. Fix add/edit alarm dialog not showing.
2. Fix queue background cover not being drawn initially on mobile.
3. Check for metadata, and cover, changes for current track in queue if it is a radio stream (0 duration).
4. Fix mobile layout now playing info background and size.
5. Draw stretched cover as now-playing background.
6. Allow specifying player in URL via "?player="
7. Add option to show stop button.
8. Fix translations not working on Android Firefox.
9. Don't add play/add icons to sub-toolbar of top-level items (e.g. Artists, Albums, etc).
10. Don't crop radio logos when browsing.