Changes from 0.6:
 - HIG compliance fixes: toolbar buttons now have tooltips and react to system preferences
   on toolbar style and detachable state.
 - Fixed a bug that made new installations of serpentine not work (regretion introduced in 0.6).
 - Removed cache location widgets, you can still set it in gconf key: "/apps/serpentine/temporary_dir"
 - Muine plugin is now bundled in tarball
 - Added a button in the preferences to refresh maximum speed

Changes from 0.5:
 - New usage widget: progressbar should be used for progress. The new usage disc widget
   improves the user experience by reflecting the disc contents in a disc like display.

 - Integration friendly: special command line arguments make integration with other
   applications easier.

 - New Muine plugin: you can write your playlist to a CD directly from Muine.

 - Save and load playlist: you can now open and save playlists inside Serpentine.

 - User interface polish: the user interface was improved and made more similar to
   nautilus-cd-burner.
