Merge pull request #4 from brawner/master

End of Sunday
small changes to driving
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/DrivingGridWorld.java
Merge pull request #5 from brawner/master

DrivingGridWorld and ALRequest updates
minor changes
Merge branch 'master' of https://github.com/markkho/ALviaIRL

Conflicts:
	src/IRLGridWorldDemo.java
	src/TestConvergence.java
cleaned up and synced
Merge pull request #8 from markkho/master

Graph cleanup