More clean up and minor fixes/features

4.1.4
- Clean up TV and Movie section
- Add missing writer field for episodes
- Allow TV shows to be sorted with the ignore article option
- Remove extra favicon.ico
- Use the same field names as XBMC
- Add missing tag field for movies
- Sort movies by sort title
- Require Gotham (XBMC 13.x) as a minimum
- No default image is better than a squished one
- Fix artwork on music section