Imported changes from Geoff's pltgz to make a new, improved, non-braindead version of tarup.  Will probably toss pltgz at some point.
Imported changes from Geoff's pltgz to make a new, improved, non-braindead
version of tarup.  Will probably toss pltgz at some point.

svn path=/trunk/; revision=922

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