1.63  2014/08/28  - bugfix for trailing spaces in \PstPolygon
1.62  2010/05/28  - use the dimens from the base packgage pstricks
1.61  2009/12/20  - use \NormalCoor for IntemediatePoint setting
                  - allow \SpecialCoor for a length
                  - updated documentation
1.60  2004/11/20  new macro \pspolygonbox, using pst-xkey (hv)
1.50  2001/02/08  Standard packaging (.ins + .dtx files).
1.40  1998/07/09  Define `PolyRotation' parameter as a real number
                 and not as an angle, to allow to use the macro
                 degrees' before to draw a polygon.
1.30  1998/02/06  Rename `PsPicture' parameter to `PstPicture' for
                 consistancy.
1.20  1997/06/27  First public release.
