Add dependencies for 3.6 tests
Add dependencies for 3.6 tests

anntzer/seaborn,lukauskas/seaborn,petebachant/seaborn,arokem/seaborn,phobson/seaborn,arokem/seaborn,sauliusl/seaborn,phobson/seaborn,anntzer/seaborn,mwaskom/seaborn,mwaskom/seaborn,lukauskas/seaborn