- Add a velocity() function to reach a desired velocity in minimum time.
- Rename "reset" function to "stop", which is hopefully more clear.
- Rename set_velocity, acceleration et al. to set_velocity_limit et al.
- Fix the semantic of interrupt codels in motion activities (#147).
- Cancel any current trajectory after a new "goto" or "takeoff" (#135).
- Fix an internal race condition possibly reading a off-by-one trajectory sample.
- This is the last realease before 2.x, which will bring incompatible changes.