New Human Mobs will have the appearance of the client's preferences

New human mobs created via Admin Simple Transform, Admin Spawn Antagonist, and Wizard Apprentice functions will take on the appearance of the players' preferences, instead of the boring default Bald, White Male.

Also fixes an minor issue with using transfer_to() a new observer mob.
Merge pull request #3548 from Ikarrus/newmobprefs

New Human Mobs will have the appearance of the client's preferences