Joint trajectory controller should display warning if the time stamp of the trajectory message has already passed and is not zero (ros ticket #5213)

[ahendrix]

currently there's no warning and the controller tries to satisfy the last point in the trajectory. It would be nice if the controller actually gives the user a warning.

related file:
[[https://code.ros.org/svn/wg-ros-pkg/stacks/pr2_controllers/branches/pr2_controllers-1.8/robot_mechanism_controllers/src/joint_trajectory_action_controller.cpp]]

trac data:

• Owner: sglaser
• Reporter: hsu
• Reported at: Thu Nov 15 17:58:57 2012
• URL: https://code.ros.org/trac/wg-ros-pkg/ticket/5213