Release 1.4.1 through bob-release-scripts

@samuel.gaist: may you please release version 1.4.1 of this package by tagging it with bob release scripts? You have everything in place now to go through the same workflow as for other packages.

If I look at the beat-eu.org/platform website, it unfortunately looks like version 1.3.1rc1 is deployed. You can see this by looking down on any webpage or by clicking on the user documentation. What I think happened is that you tagged the release w/o updating the value of the version inside setup.py.

The other issue is that there are not release notes for version 1.4.0 (https://gitlab.idiap.ch/beat/beat.web/tags/v1.4.0), so difficult to see what went on - which I'm sure was a lot of work. If you have the time, please update this.