New version of the contouring routines. All contours in the examples now plot correctly. Labels will not be plotted upside down.
New version of the contouring routines. All contours in the examples
now plot correctly. Labels will not be plotted upside down.

svn path=/trunk/; revision=5466

FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot,FreeScienceCommunity/PLPlot