Fixes to NPC stacking and aggression:

- NPCs marked as `setAllowTolerance(false)` now properly do not become tolerant.
- NPCs now stack by default in multicombat zones, and this can be controlled more cleanly with `shouldPreventStacking`.
- Rock crabs/lobsters no longer revert to rock form when safespotted.
- Pest Control Brawlers now grant participation points when damaged.
- It is no longer possible to walk underneath Pest Control portals.
- Bursts/Barrages now target a square instead of a plus.

Server/data/configs/npc_configs.json

@@ -27038,6 +27038,7 @@
     "name": "Rock lobster",
     "defence_level": "100",
     "safespot": null,
+    "movement_radius": "30",
     "lifepoints": "150",
     "strength_level": "100",
     "id": "2889",
@@ -27045,6 +27046,25 @@
     "range_level": "1",
     "attack_level": "100"
   },
+  {
+    "examine": "A Rock.",
+    "melee_animation": "2860",
+    "range_animation": "2860",
+    "attack_speed": "2",
+    "defence_animation": "2861",
+    "weakness": "7",
+    "magic_animation": "2860",
+    "death_animation": "2861",
+    "name": "Large rock",
+    "defence_level": "100",
+    "safespot": null,
+    "lifepoints": "150",
+    "strength_level": "100",
+    "id": "2890",
+    "aggressive": "true",
+    "range_level": "1",
+    "attack_level": "100"
+  },
   {
     "agg_radius": "12",
     "examine": "A sneaky, spiny, subterranean sea-dwelling scamp.",
@@ -267720,4 +267740,4 @@
     "name": "Pet shop owner",
     "id": "6750"
   }
-]
+]