Allow xw09 example which was commented out under python-2.0 because of a segfault.  But under python-1.5 (which I am reverting to) this segfault does not occur so we allow xw09 now.
Allow xw09 example which was commented out under python-2.0 because of a
segfault.  But under python-1.5 (which I am reverting to) this segfault does
not occur so we allow xw09 now.

svn path=/trunk/; revision=3292

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