2.13.1 bug fix and improvements

This quick release fixes a little regression that was introduced with the last release, and adds two very convenient improvements that were kindly contributed by Phillips Smith.

See the 2.13.1 release notes for details about them.

Packages are built and ready for upgrading. You will find them (linked) on the download page, as usual.

For the first time, there are also packages for Arch Linux. Thanks to Phillip again.