Some small changes:
* Volume slider now changes the volume continuously (instead of only when you let go of the slider)
* Ctrl-F opens the playlist and focusses the search field, pressing Ctrl-F again hides the playlist
* Boss key temporarily disabled (should have an option in the settings)
* mplayer-style key bindings (f = fullscreen, q = quit, v = playlist)
* Added new methods: TogglePlaylist(), isPlaylistVisible()
* Open playlist folder in Explorer key changed from Ctrl-F to Ctrl-E
* Debug key changed from Ctrl-E to Ctrl-Shift-J
* Shuffle button added