connection: clear the queued pair in mpd_response_finish()
connection: clear the queued pair in mpd_response_finish()

jagleeso/libmpdclient,jwise/libmpdclient,yusiwen/libmpdclient,sl0th/libmpdclient,OpenInkpot-archive/iplinux-libmpdclient,yusiwen/libmpdclient,jwise/libmpdclient,sl0th/libmpdclient,cmende/libmpdclient,jagleeso/libmpdclient,psych0tik/libmpdclient2,jagleeso/libmpdclient,sl0th/libmpdclient,cmende/libmpdclient,OpenInkpot-archive/iplinux-libmpdclient,psych0tik/libmpdclient2,cmende/libmpdclient,jwise/libmpdclient,yusiwen/libmpdclient