use setup_install for django_openstack_auth

This is fundamentally a library. As such we should setup_install
so that we can possibly pin it, otherwise we *always* get the
git version instead.

Change-Id: Ia815f2675cf535bb05a7e8eda853690171559b86
Default cinder enable_v1_api to true

As of Juno, Cinder will be deprecating the Cinder V1 API and setting it
to not be enabled by default. We'll make it enabled in devstack to
continue tests while it's supported.

Change-Id: Ia09eed0375a73c69a29b1aa379b5bd9fd3a1f5b7
Add missing config option os_auth_url

Without this option will appear as an error:
Skip interval_task because Keystone error:
Authorization Failed: Unable to establish connection to
http://localhost:5000/v2.0/tokens

Closes-Bug: #1325383

Change-Id: I42fe92596d9d475f2c5b2a6aa6b49d2b7b821c54
Revert "Build retry loop for screen sessions"

This reverts commit 0afa912e99dc9bad8b490960beb8f0cf85750dcc.

This possibly made things worse, though it times in with the
trusty add, so it's hard to tell. Revert to see if grenade gets
better.

Change-Id: Ic399957fc9d4a7da28b030cdf895df061b2567c8
Related-Bug: #1331274
Merge "Default cinder enable_v1_api to true"
Merge "Add missing config option os_auth_url"
Merge "use setup_install for django_openstack_auth"
Merge "Revert "Build retry loop for screen sessions""