Reinstated Typenumber

List of the Numbers:
Rat                       1
Slug_fat               2
Frog_poisonous 3
Unbeliever           4
Orc                       5
Shodow               6
Special Monsters:
Troll                      10
InvisibleZombie  11
Dummie               12
Dragon                 99
Drop Item works again(until now only for Slug and Frog)

Also changed Typenumbers a bit, since I forgot the Zombie before:
Zombie now Nr.4, Unbeliever 5,Orc 6, Shodow 7