reading unicode tags and filenames,
show/hide app window with single click tray icon,
create album cover if not exists,
several fixes when there is just one song in collection,
artist tree icons, handling of track numbers in n[/m] format,
show path of current file (in playlist and title list),
log output was corrupt due the use of crt unit,
etc.
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@1761 8e941d3f-bd1b-0410-a28a-d453659cc2b4
