Adding mute as a separate command as per the Bluesound API, rather than the current pseudo-mute which is achieved via lowering the volume to 0 then detecting whether the volume is 0 < volume < 0.001
Adding mute as a separate command as per the Bluesound API, rather than the current pseudo-mute which is achieved via lowering the volume to 0 then detecting whether the volume is 0 < volume < 0.001