Oops, I screwed up the variables plplot_octavedir and octave_mdir in my last commit.  Fixed now.
Oops, I screwed up the variables plplot_octavedir and octave_mdir in my last
commit.  Fixed now.

svn path=/trunk/; revision=4383

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