Install moveit_commander_cmdline.py into package specific directory, not to global bin.

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MoveIt! document expects moveit_commander_cmdline.py to be called via rosrun:

rosrun moveit_commander moveit_commander_cmdline.py

(There was a question in answers that seems to have been deleted).

Indeed the python file is not placed in rosrun-able location.

$ find /opt/ros/hydro -iname moveit_commander_cmdline.py
/opt/ros/hydro/bin/moveit_commander_cmdline.py

Unless it's intended, installing scripts under each package folder is recommended in catkin's doc, in addtion to the inconsistency with MoveIt! wiki I mentioned above.

ROS executables are installed in a per-package directory, not the distributions’s global bin/ directory. They are accessible to rosrun and roslaunch, without cluttering up the shell’s $PATH, and their names only need to be unique within each package. There are only a few core ROS commands like rosrun and roslaunch that install in the global bin/ directory.

[acornacorn]

Thanks for fixing this!