Renames the difficulties and adds police noteriety descriptions for some extra lore.
Normal -> Normal : Just another thief
Hard -> Anarchic : Cops are starting to notice you.
Very Hard -> Critical : Wanted.
Overkill -> Killer : The police are heating up.
Mayhem -> Hellfire : Dead or alive.
Death Wish -> Insanity : The police are bloodthirsty.
Death Sentence -> Dead Man Walking : It's your head...
One Down -> Die Already!
