Will Uther

I had a brief play with this. There seems to be a coordinate system issue. Looking at the button example, it comes up blank, sized to 72x44. If I resize...

It looks like this was changed from Apache-2.0 back to BSD-3 in this commit: https://github.com/dimforge/nalgebra/commit/7d5cc4912dc8928e5d476d75a6b9f430468b0cdb But it looks like some of the sub-crates never had their license changed from BSD-3...