removed pr2-grant executable
added velo ui
fixes to launch files
added qt dependency
fixed the issue that kept bench from running where the ${side}_gripper_joint was missing a limit.
I uncommented the limit in the xacro and updated the urdf for the right and left bench.
Merge pull request #4 from baxelrod/master

Fixed issue with the gripper not running in groovy. 
Tested by bobholmberg by running proposed changes in groovy.
made ui required when launched
tagged 0.1.2 version