on momentary switch machines
  (silvia pro, gs3), if the user
  stops the shot early, the button
  was still induced by the shotstopper
  (as if the shot was stopped by weight).

  check the source of the ending the shot
  before determining if the button should
  be induced.

  added new enum ENDTYPE which is used by
  the shot struct

  resolved compatibility issue with certain
  fab houses by cleaning up the outline layer

  added new solder bridge sb5 to fix the issue
  of losing one of the volumetric buttons for
  the gs3.

  added polarity markings for headers

  increase poll rate and buffer length
  of button to avoid double-presses
  on GS3.

  The optocoupler seems to have a very
  weak signal from the button on the
  GS3, so the input looks like floating
  when the button is pressed.

  increased the buffer length of the
  button state to filter out the noise
  and avoid reading double presses.

  increased the poll rate to improve
  the resulting poor response time from
  the afformentioned change.