Merge pull request #8 from L5D/master

More test for Matrix2
Strict sizes for VectorN and MatrixN operator arguments

Operation must always be done on vectors and matrices of the same size
Signed-off-by: Aleksi Sapon <QcTechs@gmail.com>
Use Assert#assertArrayEquals

Signed-off-by: Aleksi Sapon <QcTechs@gmail.com>
Finish implementing the Matrix2 tests & cleanup

Signed-off-by: Aleksi Sapon <QcTechs@gmail.com>
More Matrix3Test
Quaternion/Complex test not implemented