A gem for accessing various MIDI controllers, including the Novation Launchpad, and Numark Orbit programmatically and easily.

This was originally forked from launchpad but has diverged considerably, including a change of purpose:

• Abandon support for Novation Launchpad Mk 1.
• Add support for Novation Launchpad Mk 2.
• Add support for Numark Orbit.
• Improve allocation efficiency to reduce pressure on garbage collector.

Over time I will be generalizing this to interact with arbitrary control surfaces.