TEST: use two last versions of NumPy (1.12 and 1.13), SciPy (0.18 and 0.19) and Python 3 (3.5 and 3.6) and Python 2.7 for tests with travis
TEST: use two last versions of NumPy (1.12 and 1.13), SciPy (0.18 and 0.19) and Python 3 (3.5 and 3.6) and Python 2.7 for tests with travis

scikit-sparse/scikit-sparse,scikit-sparse/scikit-sparse