fixed output for vector< vector < T >>  dense matrices
first version using simple python interface (only Gaussian elimination working, "kind of")
made the test shorter (and to the point...)
added single-array versions of dense matrices, added signal/options for a more natural python syntax. only dense gaussian solver for now
templatized Gaussian elimination solver, for benchmarking matrix containers (only dense for now). for a mysterious reason, single precision doesn't work.
work in progress, everything is broken, but a structure is taking place
compiles, doesn't work but is taking some shape (however weird it is...)
Merge pull request #3 from pmaciel/master

Work in progress (oh, again).