Added "print" widget command.  Updated all commands dealing with plot window or device window coordinates to use the proper transformations to get the coordinates in the desired form.
Added "print" widget command.  Updated all commands dealing with plot
window or device window coordinates to use the proper transformations
to get the coordinates in the desired form.

svn path=/trunk/; revision=396

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