OctPlot release 0.2.6 is out

Hi all,

OctPlot release 0.2.6 is out and available as usual at

http://sourceforge.net/projects/octplot/

This release fixes many little bugs which riddled the 0.2.5 release.
Also, the performance should be better, especially in *nix systems,
but also in cygwin.

The changes:

        * octplotapp.cpp 
        changes socket handling: If not using cygwin, use FLTK's
        fd_callback for the best performance. If using cygwin, reduced
        polling time to 10 msec. Also, use a shorter timeout after
        commands assuming that usually come in "herds".
        This gives a factor of 10 speedup for complicated operations needing 
        a lot of octplot commands -- e.g. freqz_plot, contour

        *figure.cpp, contour.m
        Added colormap property to figure, used only by contour currently

        *configure.in
        checks for cygwin and sets CXXFLAGS to be -O1 because the default 
        -O2 produces strange behaviour.

        * axes.cpp
        fixed it so that ticklabels get printed correctly

        * subplot.m line_ovelap.m
        fixed bug in line_overlap

        * line.cpp
        added more marker types. Now only 's' and 'h' are missing

        * root.cpp axes.cpp
        implemented the colororder property for axes

        * root.cpp figure.cpp
        implemented the colormap property for figure

        * plot.m __plt__.m 
        now uses the colororder property. plot does not return handle if
        not asked

        * contour.m 
        now uses the colormap property