returning int values
remove leading '/' from DEFAULT_PLANNING_SCENE_SERVICE; otherwise planning_scene_rviz_plugin fails with 'Failed to call service /get_planning_scene ...' if move_group is in a namespace different from '/'
service must have access to global namespace
Merge pull request #469 from ros-planning/fix_pick_return

Fix for pick and place return value
motion_planning_rviz_plugin: add move_group namespace option

This allows multiple motion_planning_rviz_plugin /
planning_scene_rviz_plugin to be used in RViz and connect to
differently-namespaced move_group nodes.
Merge pull request #475 from jhu-lcsr-forks/rviz-move-group-namespace-option

motion_planning_rviz_plugin: add move_group namespace option
Merge pull request #474 from andreasBihlmaier/hydro-devel

remove leading '/' from DEFAULT_PLANNING_SCENE_SERVICE
Merge branch 'hydro-devel' of https://github.com/ros-planning/moveit_ros into hydro-devel