Changed fucntionality in maincode to include pololu motor driver calls and other ROS calls needed.
Merge branch 'motor_control' of https://github.com/SquadCollaborativeRobotics/ArduinoCode into motor_control

I NEEDZ DA CODE
commented out stuff
fixed not-talking problem.  Reworked repo
Merge branch 'motor_control' of https://github.com/SquadCollaborativeRobotics/ArduinoCode into motor_control
Added PID library and skeleton code.  Compiles, but need to test.
Reran make libraries for Hydro and new message.  Began Testing Base Control.
Gain Tuned at no load.  Need to drive test it.
Upped Baud rate.
changed PID controller values for smoother driving
Turned off Low Pass Filter
Fixed Things...?
Cleaned up a little bit and fixed odometry errors.
Classified the Code, tried to make it more readable
Merge pull request #2 from SquadCollaborativeRobotics/motor_control

Looks good.