b6a9a2fd93
Add ability to use python-pymysql library as backend for MySQL connections. Update acceptance tests to use pyMySQL. Docs: https://wiki.openstack.org/wiki/PyMySQL_evaluation The same implementation as it's done for keystone: https://review.openstack.org/#/c/242134/ Change-Id: If7a19e4c5492ea2464358144e706c62ee2c8a78a