Another clean up of the TV section code.

- Make genreConvert a generic function called XBMC.util.convertArrayToList
- Add missing writer field for episodes
- Studio, director and writer are arrays so pass them through convertArrayToList
- Don't rename genre field
- Allow TV shows to be sorted with the ignore article option
No default image is better than a squished one.
Remove extra favicon.ico
Require Gotham 13.0 as a minimum

and remove an unrequired dependency on the xbmc.gui module.
Us the same field names as XBMC and add missing tag field to movies.
Sort movies by sort title.
Bump version and update change log
Add some missing conversions to TV Show fields
Rename splitStringList to XWMM.util.convertListToArray
Simplify the code for saving changes to genres.
Fix artwork on music section.

For future reference music artwork URLs don't have the image:// and
trailing slash stripped, just prefix them with /image/.
Merge pull request #86 from fyfe/feature/cleanup

More clean up and minor fixes/features as we prepare for the final release candidates batch.