Add pr2_bringup.launch to maintain package://pr2_bringup/pr2.launch
under JSK repository. And update kinect_head.launch to disable respawn
from `robot start` command.
Merge pull request #69 from garaemon/maintain-pr2-bringup-launch-file-under-jsk

Add pr2_bringup.launch and control respawning of kinect_head.launch