Update gitignore

.gitignore

@@ -4,12 +4,11 @@ tmux/.tmux/plugins/tmux-sessionist
 weechat/.weechat/logs
 weechat/**/*.log
 weechat/.weechat/script/
-mpd/.mpd
-!mpd/.mpd/playlists
 emacs/.emacs.d/.cache/layouts/persp-auto-*
 vim/.vim/.netrwhist
 deluge/.config/deluge/state/
 deluge/.config/deluge/*.state
 deluge/.config/deluge/icons/
 mpd/.config/mpd/mpdstate
-mpd/.config/mpd/mpd.pid
+mpd/.config/mpd/mpd.pid
+mpd/.config/mpd/mpd.db