Removed trailing whitespace.
Fixed t0-t3 for corner contribution code.
Merge pull request #2 from oubiwann/master

Fix for issue #1

Oops! Thought that I'd seen that issue, but I'm guessing I fixed it in the other function, but forgot this one. Thanks for the fix. I wonder what that will change in the Roguelike series? (Which will theoretically return this week)