fixing the load plugin syntax for new version of Gazebo in groovy
updated sensor urdf the hand is now spawning in gazebo
modified the other models to get rid of outdated sensor: syntax
the kinect in gazebo is currently broken. Watch turtlebot repo for when fix is possible: https://github.com/turtlebot/turtlebot/tree/master/turtlebot_description/urdf/sensors
Merge pull request #37 from shadow-robot/B_groovy_gazebo

New release of Gazebo breaks our model