AW: New trial conversion

[Bastian M. <bma...@we...>]

> The ugly part is that all the other branch joins are in obviously wrong
places.
> I will need to identify graft points for the other branches and move them.
> 

FWIW, from a quick inspection using gitk at least the stable branches back
to 4.0 look correct in Mojca's repository on github:
https://github.com/gnuplot/gnuplot.git
But then again she earlier pointed out that she stopped doing tags after
4.6.0 because of problems.

I have uploaded graphical representations of the trees of both repos done
with TortoiseGit to
https://sourceforge.net/projects/gnuplot/files/gnuplot/testing/

  Bastian