Revert back completely to revision 9783 since the partial revert of 9847  done for revision 9848 still had issues (e.g. example 20 exited early with -dev xwin).
Revert back completely to revision 9783 since the partial revert of 9847 
done for revision 9848 still had issues (e.g. example 20 exited early
with -dev xwin).


svn path=/trunk/; revision=9849

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