Insist on a terminal driver.  Several fixes to be more robust.  Increased max stripcharts from 100 to 1000.  Cleanups & std indentation.
Insist on a terminal driver.  Several fixes to be more robust.  Increased
max stripcharts from 100 to 1000.  Cleanups & std indentation.

svn path=/trunk/; revision=2836

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