[builder] save compress
[builder] robot set mass
[doc] no --with-wide-unicode with python 3.3
[sensors] pose: slighly better info output
[sensors] new velocity sensor using the physics model
[ros] Kuka interfaces

by Mirko D. Comparetti - fix #301
[builder] set_speed must be called first

component frequency is set relatively to the fps value - fix #311
[doc] fix public link s/ssh/git/ in mocap
[test] rename video_camera test for doc

video_camera_pgm_testing -> video_camera_testing for doc - fix #306
http://www.openrobots.org/morse/doc/stable/user/sensors/video_camera.html#other-sources-of-examples
[ros][fix] mathutils.Quaternion() expects a tuple