A page loads the equipment catalogue once, hands over a design's .mtf text and gets an i64 back - damaged, and as flown by a given crew. No bindgen: the boundary is four numbers wide. smoke.mjs drives it from Node, which is the only thing that exercises the interface a browser calls through. Change-Id: I05f0f3b9f8ff6055ac0c6793e49b8f25781367b4