According to Openstack summit session [1],
stestr is maintained project to which all Openstack projects should migrate.
Let's switch to stestr as other projects have already moved to it.
[1] https://etherpad.openstack.org/p/YVR-python-pti
Change-Id: I1b5bd8a53d0f93b99dd60fd5711a60f1135bcc4c
The release management team have indicated this is their preferred way
to collect release notes in future.
Closes-Bug: #1634356
Change-Id: Idce0284b62602bfd51e64784e29739092ca13df3
Stephen Finucane