Add in perl script to massage SWIG-generated octave bindings to insert the correct #pgrama statements so that the gcc -fvisibility=hidden option works. 
Add in perl script to massage SWIG-generated octave bindings to insert the correct #pgrama statements so that the gcc -fvisibility=hidden option works. 


svn path=/trunk/; revision=11910

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