uses odom child_frame_id to set robot_vel frame_id
fix hypot issues, add comments to tests from tracking this down
Merge pull request #204 from mikeferguson/fix_costmap_tests

fix hypot issues, add comments to tests from tracking this down
update changelogs
1.11.9
Remove unused robot_radius parameter

@mikeferguson can you confirm this? Looking at the code and experimenting without it, it seems this parameter is unused. Perhaps this was made redundant by the `robot_radius` parameter now in [Costmap2D.cfg](https://github.com/ros-planning/navigation/blob/88e802d89a28d5dbee0ce10ab3c0ab1931830e30/costmap_2d/cfg/Costmap2D.cfg#L20).

For further discussion, see https://github.com/turtlebot/turtlebot_apps/issues/94.
Merge pull request #209 from stonier/patch-1

Remove unused robot_radius parameter
renames acc_lim_th to acc_lim_theta
Merge pull request #212 from efernandez/acc_lim_theta

renames acc_lim_th to acc_lim_theta
restore acc_lim_th with warning
uncommented line in global_planner that pushes the goal onto the end of the global path and switched move_base's planService to search in a widening circle up to the given tolerance
Merge pull request #214 from KaijenHsiao/add_goal_to_path2

add goal to end of path in global_planner, changed move_base's planService to search outwards
Merge pull request #190 from efernandez/robot_vel_frame_id

uses odom child_frame_id to set robot_vel frame_id
merged