Write out icol0 & ncol0 (cmap0 index & #entries) using 2 bytes rather than just 1 as previous.
Write out icol0 & ncol0 (cmap0 index & #entries) using 2 bytes rather
than just 1 as previous.

svn path=/trunk/; revision=6045

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