Slot Max & Wind Walk fix + reviewed scripted portals

Fixed slotMax function caching up dirtied player data.
Fixed many portals not supposed to warp players to "random spawnpoints".
Fixed Wind Walk not being cancellable by attacking.

docs/feature_list.txt

@@ -57,6 +57,7 @@ Monsters & Maps:
 * Added Boss HP Bar for dozens of bosses (needs provided custom wz).
 * If multiple bosses are on the same area, client will prioritize Boss HP bar of the target of the player.
 * Boats, elevator and other travelling mechanics fully working.
+* PQs, Taxis and other event-driven situations warps players at random spawnpoints, GMS-like.
 
 PQ potentials:
 * Lobby system - Multiple PQ instances on same channel.