For PureScript compiler 0.14.0

• Add Spago
• Update dependencies

• Rename Instruments.read as readGleitzman.
• Reduce the code bloat in `Midi.Instruments.

PureScript 0.12

This is the first release to be published to Pursuit.

breaking changes

• Expand running status messages in situ.
• Get rid of translateRunningStatus post-processing
• Disallow running status in event streams
• Separate stream event handling from file event handling
  (SysEx parsing is different in the two contexts)
• Instrument.instrumentNames now returns a list of InstrumentName. The previous
  version returning a list of strings is renamed to gleitzmanNames.

additions

• Add 'binary' MIDI generation
• Add type aliases for Channel, Velocity, Byte etc.

bug fixes

• Correct varInt parsing for large integer values

The initial published release.

The web-midi support uses bodil/purescript-signal as a means of encapsulating web-midi callbacks. This provides a stream of input device connections and disconnections and a stream of MIDI event messages.