Made travis catkin lint treat warnings as errors
Made travis catkin lint treat warnings as errors

RIVeR-Lab/walrus,OAkyildiz/walrus,RIVeR-Lab/walrus,OAkyildiz/walrus,OAkyildiz/walrus,OAkyildiz/walrus,RIVeR-Lab/walrus,RIVeR-Lab/walrus,OAkyildiz/walrus,OAkyildiz/walrus,RIVeR-Lab/walrus,RIVeR-Lab/walrus,RIVeR-Lab/walrus,OAkyildiz/walrus