Subsystem#cancel() calls thread.interrupt()
Added code to testPeriodic to replicate all the functions of the robot from one controller. The only things switched was the drivetrain class to two-joystick arcade drive.
Set roller speed to 1.
Full robot can be controlled with 1 joystick with testPeriodic.
Merge origin/master
Merge branch 'master' of github.com:FRC3161/Iapetus2014 into pidbuilder

Conflicts:
	src/ca/team3161/iapetus/Iapetus.java
	src/ca/team3161/lib/robot/Subsystem.java