Merge branch 'master' into sam-work
Merge branch 'master' into sam-work
Corners dir defined

SetCornerDir returns two tuples, indicating using -1 0 and 1 which
direction its adjacent tiles are in.
Merge branch 'sam-work'
Merge branch 'master' into keenan-work
Made Turns Smarter

Originall accidentally committed this to Sam's branch. Rolled back
there, now committing here.
Added Cars!

Added a class and several methods to create a random number of cars
that will follow the roads in a random direction.
Merge branch 'keenan-work'

Conflicts:
	roadTest.py