please consider simplifying the licenses
I'm in the process of writing the debian/copyright file and… it's not easy!
From my point of view the problem is that there are some files under GPL2+, some under GPL3 only, some under LGPL3+, some under LGPL3 only, some under LGPL2+, and a bunch of stuff under BSD license… now, the only way to combine all of this, as I understand, is to use GPL3 only license.
So, I'm suggesting to just change the license to GPL3 or GPL3+ for simplicity.