From Olivier:

- New plotting options:
   "TRI1" : The Delaunay triangles are painted with color levels. The
            edges of each triangles are painted with the current line
            color.
   "TRI2" : the Delaunay triangles are painted with color levels.
- New method: PaintPolyMarker0. Used in PaintTriangles.


git-svn-id: http://root.cern.ch/svn/root/trunk@7699 27541ba8-7e3a-0410-8455-c3a389f83636