[microscript] keyboard.press not updated unless update is defined

[FEZfan]

keyboard.press (but not keyboard) will be unresponsive to input unless update is defined (as anything)

will not work:

draw = function()
  if keyboard.press.SPACE then
    print('spacebar was pressed')
  end
end

will work:

update = 0

draw = function()
  if keyboard.press.SPACE then
    print('spacebar was pressed')
  end
end