[1.6b2]Temporal Hound will flee from enemies

[starsapphire]

Temporal Warden's temporal hound has an default tactic rather than the "melee" tactic, which means they will flee from enemy at low HP. This may not be optimal since they are melee and they can still fight below 1 HP.
Haven't played other summon classes, hope other players will report other strange AI behavior they have seen.
Another strange AI behavior I have seen is that Corrupted Sand Wyrm may flee fast with lightning speed into sand, unlike Sandworm Queen that won't flee. Not sure if it is intended though.

[darkgod]

fixed