Fixed mat2x4 value-type constructor


Hi,

I'm new to GLM and liking it a lot. I'm writing bindings to Chicken Scheme (call-cc.org) and I came across what I think might be a bug. That is, if I have understood the column-major/internal data-structure correctly.

The problem I came across was that the mat2x4(float) constructor does not work properly, and have attempted to fix it with the attached patch.

I was unsure of which branch might be suitable, so I gave 0.9.4 a shot.

Thanks for a brilliant mathlib!