Return a copy of the position, vel, and effort dictionaries, to avoid them being modified without the user expecting it.
Merge pull request #126 from shadow-robot/B_fix_hand_commander

Return a copy of the position, vel, and effort dictionaries, to avoid th...
latest changes
Merge branch 'hydro-devel' of github.com:shadow-robot/sr-ros-interface into F_ros_control