White scroll & PiratePQ fix + Party for starters + concurrency protection on event scripts

Fixed successful scrolled items not using up an upgrade slot when using white scroll. Fixed some issues with the PiratePQ and added a "clear all boxes to complete a stage"-mode. Added "Party for Starters" feature. Added concurrency protection on event script modules.

scripts/portal/davy_next3.js

@@ -1,5 +1,10 @@
+function passedGrindMode(map, eim) {
+    if(eim.getIntProperty("grindMode") == 0) return true;
+    return eim.activatedAllReactorsOnMap(map, 2511000, 2517999);
+}
+
 function enter(pi) {
-    if (pi.getMap().getMonsters().size() == 0) {
+    if (pi.getMap().getMonsters().size() == 0 && passedGrindMode(pi.getMap(), pi.getEventInstance())) {
 	pi.warp(925100400,0); //next
         return(true);
     } else {