PR2/pr2_common — pull request #233 by k-okada (2014-12-16 05:33:05+00:00)
Title: update pr2 urdf model for indigo

- when using ROS Indigo and Gazebo 2.2.3, the name specified here must be _collision
see http://answers.gazebosim.org/question/6929/contact-sensor-error-when-using-gazebo-223/

- please create new branch "indigo-devel"