
Remove references to FreeSans / FreeSerif fonts. Apparently these are
a poor choice for non-Latin characters due to their low quality. We
should probably not recommend them.

svn path=/trunk/; revision=6671

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