[ros] fix PoseStampedReader
[helpers] transformations: add setters for rotation and translation
[actuators] teleport: consider actuator2robot transformation
[ros] sematic_cam: consider relative option for frame id

If the relative option is used the default frame_id is the name of the
component, otherwise /map as before You can also overwrite the frame_id
by explicitly specifying it.

fixes #515
[camera] Add scene only if the camera is owner by an 'internal' robot

Fix #526

The semantic of bge.logic.addScene is crappy (and I'm generous). If the
scene does not exist, it still do something, which seems basically
duplicate the current scene, with all the logic. It is a problem in the
multinode case where only the scene related to the controlled robot are
created.

Still, it is definitively not a good fix, as it leaks multinode
abstraction in a component. The 'good' solution would be to 'not
configure' component owned by external robot (instead of configure, then
disable), but last time I tried that, it seems a lot more harder than
expected.
[doc] Tweak phrasing in some docs where the language doesn't flow
[builder] Make _classpath and _blendername class field instead of object field

Will allow to retrieve them while building the documentation
[doc] Start to generate doc from the sensors available at builder level
[builder] Fix typo in previous
[builder] First pass on actuators
[builder] Extend a bit the creator interface

It now take two more argument with default value:
    - action allows to choose what do to with the blendname passed in
      parameter, don't care and add empty (default behaviour), import it
      or just reference it.
    - make_morsable allows to enable or disable the addition of Morse
      logic.

It makes the creator API able to deal more easily with stuff previously
created with Actuator / Sensor.
[builder] Make gripper an ActuatorCreator
[builder] Introduce ArmatureCreator and use it in place of Armature
[builder] Convert PA_10 to ActuatorCreator

Untested
[builder] Kill Sensor / Actuator / Armature
[doc] Generate doc from builder actuator too.

While here, improve a bit the code generated