Minimal changes (i.e., book ==> chapter) necessary to integrate this Ada documentation into our PLplot documentation.
Minimal changes (i.e., book ==> chapter) necessary to integrate
this Ada documentation into our PLplot documentation.

Remove PLplot description section which is not appropriate since that
done elsewhere in this PLplot documentation.

svn path=/trunk/; revision=8767

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