Finish off the official deprecation of plrgb, plrgb1, plhls, and plwid in a consistent way.
Finish off the official deprecation of plrgb, plrgb1, plhls, and plwid
in a consistent way.

svn path=/trunk/; revision=12954

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