What is the license under which Fokus operates ?

Hi there, 
I just took a look at https://github.com/hakimel/Fokus/blob/master/LICENSE and was able to find a proper license. Can you put some sort of license header so people are clear. 

One way could be to have something like machine-interpretable debian/copyright file if that seems good. 

https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/

I leave the rest to you. 
