[example/tuto] fix typo and camera flip
[Examples] Typo and correct x-axis camera rotation
[Examples} Flying cat and mouse uses pymorse.
[examples] Name correction and change directory.
[human] Make it possible to change the human name

Should work with several humans as well, but not tested.
Closes #237
[doc] install ROS add distribute
[helpers] clean loading
[ros] fix typo in JointState