added Portal Hounds, according to a wowhead comment they are summoned by a Dreadknight. I added them as escorts of the Dreadknight
adjusted detection_range of some npcs so they engage in combat sooner
changed respawn of enemies and added some more felguards, so they break through some times.
smart_script updates
bowman now shooting
NPCs now stopping at end of waypoint
added more defenders
todo
add waypoints for Fel Stalkers and Voidwalkers
figure out where and how Portal Hounds spawn
try again to delay spawn of Dreadknights