octave forge sockets pkg maintenance

[JohnD]

The sockets package has a few issues with it, some that that prevent it
installing in the upcoming octave 6 [1, 2, 3], and looks like it hasn't has
any commits to the sourceforge repo since 2015.

In addition there are a few changes needed for going through the package
review.

Are there any issues from the author or last maintainer on me updating for
octave 6 and preparing a new release?

If no issues, is it ok to change the maintainer to the octave forge
community, or  keep as maintainer the same?

John

[1] https://savannah.gnu.org/bugs/?57415
[2] https://savannah.gnu.org/bugs/?51288
[3] https://savannah.gnu.org/bugs/?44606