Addded DeviceMode 2nd row mute buttons
- DeviceMode cannot have the track select or rec arm due to its
device navigation buttons.
Added yellow current step resolution indication in SequencerView.
Added SequencerView disable when in Audio track.
- Scene buttons and grid are reset.
Merge pull request #114 from teotigraphix/master

SequencerView fixes, DeviceMode mute buttons