Changes to gnuplot fitting submitted to sourceforge as patch

[Thomas M. <mat...@ph...>]

Hi

My changes to gnuplot fitting are now available as a patch at 
sourceforge.

Changes are limited to src/fit.c, demo/fit.dem, and a new directory
demo/newfit, containing details in README.newfit, and many demos.

At present, the patch is constructed more for an audience of developers
to test, rather than for users to install, since the idea is for people
to evaluate it for acceptance into the distribution, rather than for
users to patch a released version.

Please run the demos in demo/newfit to see the effect of the changes.