jump off mobs

you can now jump off mobs while invulnerable
  includes time dilated
pause display text updated with details menus
difficulty parameters
  0.82->0.84x damage done per level
  1.25->1.23x damage taken per level
tungsten carbide 300->400 health, but 0.08->0.02 seconds of coyote time and longer crouch time
nitinol 0.08->0.17 seconds of coyote time and much less crouching on hard landings, but 0.8->1 damage taken
mass-energy equivalence no longer costs 2 research
long power up spawns, like from interest or supply chain:
  will pause new spawns until total power ups are below 300 to reduce lag
  stop spawning if you take damage

bug fixes

js/spawn.js

@@ -5915,7 +5915,6 @@ const spawn = {
         me.memory = 900;
         me.delay = 60
         me.cd = 0;
-        spawn.shield(me, x, y, 1); // bad for stealth
         me.onHit = function () {
             if (this.cd < simulation.cycle) {
                 this.cd = simulation.cycle + this.delay;