1.5.4

1. Fix "0 Items" when showing lyrics in browse view.
2. Poll server status every 2 seconds during scans.
3. Fix showing podcast information - revert change to show images for text items.
4. Fix adding/playing albums from advanced search results.
5. Scroll advanced seach results into view.
6. Add native callback, allowing to pass player status to native applications.
7. Hide button to delete virtual library unless settings are unlocked.
8. Restore library ID when go back.
9. Assign icon to Audiobooks and Authors categories.
10. If have selection and click on header, then toggle selected state of items.
11. Enable artist/album actions when clicking on artist/album text in queue, or artist name in album listing.
12. Fix showing of track num in now playing.
13. Show disc and track numbers as "disc.track" if a track has disccount>2
14. Show library name in browse view.
15. Fix browse view subtoolbar divider showing under certain circumstances when it should not.
16. Use "Empty" as subtitle if list response has no items.
17. Remove code to reset splitter to 50% on click, as it sometimes gets mistakenly activated.
18. Don't show online service emblems for artists - as there might be more than one service.
19. Add genre mapping for browse modes fetched via ['material-skin', 'browsemodes'] command. Required for pinned items, where we need to save genre name, not id.
20. If a browse mode is for artists with a library_id specified, then dont set E and Q in tags.
21. Add optional 'hide' query parameter, to allow elements to be hidden.
22. Add optional 'appSettings' query parameter. This should be a URL that an app embedding material will trap in order to produce its settings dialog. If set then a cog icon will be added to the toolbar of Material's settings dialog.