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New in 0.5, 2010-02-17:
* New generic cubic spline implementation.

New in 0.4, 2009-11-16:
* Fixed /severe/ computation bugs.
* Clean interface.
* Document.
* Misc. bug fix.

New in 0.2.1, 2009-05-03:
* Abstract classes for costs on states and trajectories.
* Implementation of the cost on a trajectory as the sum of costs on differents
  specified points.
* Import trajectory prototype structures and algorithms (by Florent Lamiraux).
* Import cubic spline implementation (by Sylvain Miossec).
