Added launch directory to bringup package.  Left the old launch files to be backwards compatable for now.  Updated driver with SwRI internal changes.  Changed driver to accept ip address to match ROS-Industrial standard.  IP addresses for industrial robots are typically fixed.  Hostnames are not typically used (this is what the driver expected)

Reorganized meshes to include both collision and visual messhes (like other ROS-I robots).  Modified urdf xacro to include new models.  Removed extra robot pedestal link from urdf (urdfs should only include the robot itself).