Implemented new cmap1 selector to handle additional control point attribute.  Improved widget layout some.
Implemented new cmap1 selector to handle additional control point
attribute.  Improved widget layout some.

svn path=/trunk/; revision=1446

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