cgm changes: put in dynamic driver logic and change device number from 40 (which was an error since same as png) to 43 (the first available number).
cgm changes: put in dynamic driver logic and change device number from 40
(which was an error since same as png) to 43 (the first available number).

svn path=/trunk/; revision=3355

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