NPCs are casting AE spells through walls in places they shouldnt

[skomag]

spells_new column npc_no_los - spells are set to -1, 0, 1 and the server is treating -1 the same as 1. Not quite sure what -1 should mean but most likely only the 1s should go through walls. Dont change spells_new change the way the server reads the db into a bool.