Fair changes to SCP code

- Gets rid of now useless commented stuff
- Some modification in dialogue
- SCP should no longer cheese out of the observe check
- SCP no longer escapes when he's grabbing someone or just after he
finished someone off
- EAT power was modified to not include SCP and other miscellaneous simple_animal mobs. Mobs that everyone wants to eat like Ian, Runtime or the parrot can still be