v2.0.0

Changed

• .pause() now lifts the arm by default, and returns it to the previous z height upon .resume(). It returns a promise that resolves when the machine is actually paused.

Fixed

• npm run test-browser now finishes and exits properly.
• The README erroneously stated that coordinates were emitted from the machine as soon as a command is accepted at the beginning of a movement. The response actually comes when the movement is complete. Updated README to reflect that coordinate events are emitting the coords of the last completed movement.