Made keypress handler a bit easier to invoke.  Eliminated low-level aspect and orientation handling.  Some name changes.  Now uses standard meta coordinate system.
Made keypress handler a bit easier to invoke.  Eliminated low-level
aspect and orientation handling.  Some name changes.  Now uses standard
meta coordinate system.

svn path=/trunk/; revision=281

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