Leads to resize with garbage value

TODO: where to set the size of angleEncoder_?

sot_laoder: calls the real time control loop after initializeRosNode.

with filling sensor, control computation and sending control.

The trigger signal cannot be destroyed.

This enables to directly launch a python file within any roslaunch file
Adapted by F.Keith for the extraction of the messages.

Fixes #22

Conflicts:

	include/dynamic_graph_bridge/ros_interpreter.hh
	src/ros_interpreter.cpp

Deregister the signal formerly added.
Add a mutex system to prevent removing a signal while triggering it,
 to avoid a crash (especially if the topic was listened to).

  Without this call the command fails.

The old names are kept for now, but will disappear in the
future.

The old names are kept for now, but will disappear in the
future.