Future Work

• [arbotix_firmware] add support for nuke-based walkers
• [arbotix_controllers] add linear controller.
• [arbotix_python] add nuke controller, body access functions.
• [arbotix_python] allow min/max angle to be extracted from URDF.
• [arbotix_sensors] add base_laser_from_tilt.py - extract a "base_scan" from a tilting laser.
• [arbotix_controllers] add tilting_stage.py - controls a tilting sensor stage (such as for a laser range finder). Offers settings for period and magnitude of tilt oscillation, emits trigger for laserscan_assembler. (may move to simple_controllers)