[monitor] Speed in m^s-1
[monitor] Ignore log messages for now
[introspection] Give more feedback when task start + behave well when no intorspection server
[odom] Correct calibration values for ticks/meter + base line
[helpers/plot] Do not flood XYPlot when not moving
[lowlevel] Process encoders
[introspection] WIP on the introspection server
[minor] loglevel in autonomous_ranger
Fixed the order and sign of encoder msgs
[actions/navigation] Added 'stop'
Fixed several issues with orientation/speed

robot.face|back now work as expected
Max speed of the robot is now calibrated.
[monitor] Added option to show the robot traj (odom)

While here, display update rate of monitor itself
Added an 'immediate' mode that executes actions in a *synchronous* way

Useful for debugging (eg, to see exceptions and so on)