Changed all plplot source files to include plplotP.h (private) rather than plplot.h.  Many changes to capabilities of argument parser.  New mode flags as well as argument flags.  User-specified variables can now be set directly, depending on flags.  Invisible options and ignored options added. Many internal options added (most invisible) for support of the TK driver. See internal documentation for more details.
Changed all plplot source files to include plplotP.h (private) rather than
plplot.h.  Many changes to capabilities of argument parser.  New mode
flags as well as argument flags.  User-specified variables can now be set
directly, depending on flags.  Invisible options and ignored options added.
Many internal options added (most invisible) for support of the TK driver.
See internal documentation for more details.

svn path=/trunk/; revision=255

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