- 0.8.3 (thanks to Michael Lapsley)
  - fixes displayed message about the intersection point
  - the intersection point is now a free point instead of a fpoint
    so that one can more easily see the intersection value
    (and this point doesn't belong to one function, but to 2 functions, so...)
- 0.8.2 is compatible with OCaml 3.0.5
- 0.8.1 is compatible with OCaml 3.0.4