Aliasing twitchwolf -> twitchdawoof.

Reason: Either that, or remove the former entirely, since the latter is the official name of the character.

Do we really need an alias for a character that's only tagged in 4 images?

Yeah, in this case it's just easier to change the tags. We try to only use aliases for really common misspellings, or tags that are used a lot (like 100+).