Laney/Ubuntu is working on basing their britney on Debian's britney again. Let's pull in some of the changes where they either don't hurt or are actual improvements.
In particular, this adds back the DKMS testing that was dropped in commit b3805086 as I am convinced (by people) that it's probably better to test those and autodep8 got fixed (that's why I first thought it wasn't right to test those).