2.17.91
* Fix crasher when getting the listed of subtitles/languages
* Handle the icyx:// protocol
* Add video/x-theora+ogg, application/ram, video/x-matroska,
  audio/x-matroska and audio/x-wavpack to the supported mime-types
* Solaris compilation fixes
* Fix vanity compilation
* Fix using the playlist parser from Python
* Have "Audio files" and "Video files" filters in the Open dialogues
* Browser plugin:
  - Add stubs of Javascript support for the GMP (Windows Media compatible)
  browser plugin
* GStreamer backend:
  - More robust code to check for stream metadata
  - Fix title streaming in internet radios
* xine-lib backend:
  - Fix blue-ish pictures created by the thumbnailer