Episode 5 - Minor Update

Small update for Episode 5:

1. New BTS starring Riley
2. More scenes in the Ep6 preview
3. Retroactively add some characters into the background of previous episodes
4. New uniform faces for James
5. Various art fixes
6. Various typo fixes

Old saves should work. There's no Episode Select for Episode 6 yet so you'll need to load a save at the end of Episode 5 or go through Episode 5 again, sorry.