This is a wrapper around the GNU Scientific Library.
Right now it concentrates on matrix operations. There are several categories

* elementwise ops	ops mapped over matrices
* linear algebra	multiplication and decomposition
* transposition		changing row/col etc..
* composition		concatenation of matrices

I'm in no need for tensors atm.

What' I'm trying to do now is to reorganize the code a bit so i can
reuse more code, or do more compile-time macro expansion.