MRT has been [relicensed](https://github.com/deepfield/MRT/blob/master/COPYRIGHT) to BSD 2-clause so it would be great to change the [copyright here](https://github.com/mjschultz/py-radix/blob/master/LICENSE#L37) from [BSD 4-clause](https://en.wikipedia.org/wiki/BSD_licenses#4-clause_license_(original_%22BSD_License%22)) - which is also GPL incompatible.
MRT has been relicensed to BSD 2-clause so it would be great to change the copyright here from BSD 4-clause - which is also GPL incompatible.