Beta-testing version of 5.4.4

[Ethan A M. <me...@uw...>]

I have placed a tarball for a beta-test version of gnuplot 5.4.3 on SourceForge.
Please report any problems,

There is nothing special in this minor release.
It mostly consists of small fixes back-ported from the development version.
The most visible change is that auto-layout of 3D plots after "set view map"
is more similar to the auto-layout of 2D plots, including display of x2 and y2
axis labels if they are present.
 
For a slightly more complete list of changes see the Release Notes.

  https://sourceforge.net/projects/gnuplot/files/gnuplot/testing/gnuplot-5.4.4beta.tar.gz

My plan is to announce the 5.4.4 release in a week or so.

        happy gnuplotting,

                Ethan