split kurtana_description out of kurt_description
Urdf stuff moved from find kurt_description to find uos_common_urdf
kurtana_bringup: add automatic_camera mode to use with calibration

This essentially copies the kurtana.launch and uses the automatic calibration
provided by the katana_kinect_calibration module
kurtana_gazebo: keep gazebo's 'gui' argument available

It's annoying to always have to wait for the gzclient...
and see it segfault 2 out of 3 times.