Rebase python-PyMySQL to 0.7.9 to pull in current version
This is required as the latest version of python-tripleo-heat-templates starts using features from 0.7.9 or greater.
Verified. https://rhos-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/view/RHOS/view/RHOS10/job/high-availability-qe-10_director-puddle-rhel-7.3-virthost-3cont_2comp_1-ipv4-vxlan-ceph-sanity/90/
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2017:1585