Added support for multiple sdcard in example.
Example of how to specify desired card, if needed.
added getState() as to report other possible states
such as paused but playing.
changed 'p' command of INO to toggle paused, 'r' deprecated.
changed INO play track # command to skip getting track info if failed to start.
changed case of get.. and set.. functions all to lower case for consistency.
corrected available static quota
changed ADMixer from commented to #IF(0)