status: updated mpd_status_get_state() documentation
status: updated mpd_status_get_state() documentation

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