
Added the generated files (html_DATA, pdf_DATA, man3_MANS, and geninfo_DATA)
to EXTRA_DIST, such that they go into the distribution targball.

svn path=/trunk/; revision=4421

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