v0.4.0

• support for playlists (#555)
• improved performance and scalability (#564)
• prevent database corruption on simultaneous updates (#322, #480)
• fixed handling of local shares and improved the performance of the related hooks (#566)
• made the album and artist grouping case insensitive (#316)
• support for new file formats (when browser support available): WAV, M4A, M4B
• seeking supported also for FLAC files (when browser support available)
• fixed parsing of album artist tag from FLAC files
• fixed some charset issues by updating getid3 library to version 1.9.14 (#410)
• allowed one album to cover several release years (#279, #307)
• support ISO-formatted date tags (#430)
• improved the heuristics of deducing track number and name from file name when not given in tags
• refresh the UI automatically when the scanning process is done
• show the currently playing track in the window title
• lot of internal refactoring and small UI fixes and tweaks