Tue 15 Jun 2021 : added deformations.gpr to build all test procedures.

Tue 14 May 2013 : new directory curves for solving univariate polynomials
  and working with plane algebraic curves.

Mon 21 Jan 2013 : the Continuation directory in Deformation was split into
  End_Games, Sweep, Trackers, and Continuation.

Sun 20 Jan 2013 : new directory "Deformations" houses Homotopy, Newton,
  and Continuation.  The directory Differentials moves to Experiments.
