
Fix errors brought to light through updates to examples

1) Error in plshades which resulted in the the last contour level
being left unshaded.

2) plhlsrgb and plrgbhls are now part of the common API and so
begin with a c_. This wasn't reflected in the octave bindings.

svn path=/trunk/; revision=7220

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