Merge pull request #1 from arcym/master

I declared my intentions for this project.

This better be good
changed xblock to tileX
Merge pull request #2 from arcym/master

Throws the exception instead of catching it.
also for isBlocked() changed tileX
Merge branch 'master' of https://github.com/jshiraef/zeldaesque
Changed some whitespace in the room.