[builder] Partially revert  75a691

Restore the renaming semantic, but keep the doc effort
[cmake] Give another hint to search pyconfig.h
[cmake] Add a copy of some cmake std files for the sake of old cmake
[blender] Don't hide KeyError in various calling_action

While here, instead of triggering some exception at each iteration of
blender main loop, just exit properly with a backtrace.
[armature] Fix a bug hidden by the KeyError massive exception handling
Fixed two major bugs in armatures

- in Armature: head_pose -> pose_head
- in ArmaturePose: default action ignored some joints
[pr2] Fixed the rotation direction of some of the armature joints

Done by rotating by 180deg the 'roll' value of the individual bones (in Edit mode)
[ros] allow for setting the topic in more ROS serialization modules
[ros] More correct way to map components name to topics
[ros] Added helper to import ROS nodes that are not catkinized
[builder] Allow to pass args to add_stream from add_interface
[pr2] PR2 builder script: organize it in more or less equipped version of PR2
[actuator] Prepare orientation for automatic documentation

while here, handle a style issue
[actuator] Improve the documentation of stabilized_quadrotor

ok to generate the doc from the python file.
[actuator] Improve steer_force documentation

While here, improve a bit the style, following PEP 008.
Ok'ed to generate the doc from it.