Added wpilib's StopMotor function
merging upstream
Fix bug in DoubleSolenoid#Get()

Get doesn’t require a value

http://www.virtualroadside.com/WPILib/class_double_solenoid.html
Filler to make our code work. Needs to add real mock functionality
Make SetLeftRightMotorOutputs public
Merge remote-tracking branch 'upstream/master'
Merge pull request #3 from VikingRobotics/master

Merge bugfixes from remote branch