level.labs() is live, new map

new level labs is done (it's kinda randomized, so expect it to feel different each run)
  (I know there are tons of bugs, but I figure we can find them together :)

foam gun now gets about 20% less ammo
new junk tech: "emergency broadcasting" - plays some fun sounds and gives you health

updated matter.js to a newer build matter-js 0.17.1 by @liabru
  (was matter-js 0.14.2 by @liabru 2018-06-11)
  matter.js patch notes suggest a possible 30% physics performance increase
  decomp.min.js was removed because I don't think it does anything anymore
    I did get one error message about it being missing, but there were other bugs too

js/bullet.js

@@ -3381,7 +3381,7 @@ const b = {
                 // makeNeedle(m.angle - spread)
             },
             fireRivets() {
-                m.fireCDcycle = m.cycle + Math.floor((m.crouch ? 23 : 15) * b.fireCD); // cool down
+                m.fireCDcycle = m.cycle + Math.floor((m.crouch ? 25 : 17) * b.fireCD); // cool down
 
                 const me = bullet.length;
                 const size = tech.rivetSize * 7.5
@@ -4176,7 +4176,7 @@ const b = {
             name: "foam",
             description: "spray bubbly foam that <strong>sticks</strong> to mobs<br><strong class='color-s'>slows</strong> mobs and does <strong class='color-d'>damage</strong> over time",
             ammo: 0,
-            ammoPack: 27,
+            ammoPack: 22,
             have: false,
             charge: 0,
             isDischarge: false,