v0.16.0

• support for playlist files (#777, #652, #645).
  • exporting playlist to M3U8 file
  • importing playlist from M3U8, M3U, or PLS file
  • playing M3U8, M3U, and PLS files directly in Files
  • the file paths within the playlist file must be relative
• playlist details pane
• album details pane
• Last.fm data on tracks details pane when available
• navigation from track details to album and artist details
• when navigating from the Files player to Music, continue from the same time offset
• add link to the github change log under the About section in the Settings view
• fix rendering of lyrics and other track details which use "CR only" new lines (#780)
• internal refactoring and minor fixes