Added code to make it easy to switch between using plframe's and plxframes', as a test of each.  Also updated to new matrix syntax.
Added code to make it easy to switch between using plframe's and plxframes',
as a test of each.  Also updated to new matrix syntax.

svn path=/trunk/; revision=1778

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