Adds The Cape costume for Abed

Let's hope this Travis build is working now!

(Went kind of Meta-Knight for this one. Can you tell?)

EDIT: Adds the following new costumes:

Abed: Troy and Britta roleplays
Jeff: Greendale Baby & Ricky Nightshade
Dean: New Dean and How-Dean Partners (Cowboy)

Also fixes some of the Dean sprites, and pointed out by Jordy

Edit #2: Fixes some derpy eyes on Baby Jeff, and removes a WIP I was testing