NumPy 1.17.3 release.

1. 81fe94d TST: Register markers in conftest.py. by Charles Harris · 6 years ago
2. 96a40bd BLD: Make CI pass again with pytest 4.5 by Eric Wieser · 6 years ago
3. 2508610 TST, DOC: enable refguide_check by Tyler Reddy · 7 years ago
4. 3f111a4 BUG: Fix matrix PendingDeprecationWarning suppression for pytest 3.8+. by Charles Harris · 7 years ago
5. bb73a6a TST: Update pytest.ini and PytestTester by Charles Harris · 7 years ago
6. 6d7e702 MAINT: Update pytest.ini. by Charles Harris · 7 years ago
7. edb501d MAINT: Add a pytest.ini by xoviat · 8 years ago