Switch from fedora-26 to fedora-27 testing
Switch from fedora-26 to fedora-27 testing

Now that we have fedora-27 images online, start testing against that.

Change-Id: Ic1666203afe58d8fc0041e3a8f73e69fef6b6321
Depends-On: https://review.openstack.org/543013/
Depends-On: https://review.openstack.org/543019/
Signed-off-by: Paul Belanger <e7139c8e6c4ea75cc1c287ce081b2dc0f3ab39ec@redhat.com>

openstack/ansible-role-shade