Take advantage of command-line options that are now available for C++. Also, do all the new C++ examples.
Take advantage of command-line options that are now available for C++.
Also, do all the new C++ examples.

svn path=/trunk/; revision=4856

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