Include tempurls in python-swiftclient

python-swiftclient 2.2.0 adds support for tempurls, which is a blocker for
the new (aiming for default) Ironic driver using the Ironic Python Agent.
The Agent needs a temporary URL generated for a Glance image to avoid
passing around admin auth tokens to every machine that is being deployed
to.

Blocked Ironic patch: https://review.openstack.org/#/c/81391/

Change-Id: I35d74f13af9c5cac936bf711e4d2f646531eae60
Don't use Django 1.4.0 nor 1.4.1

Versions 1.4.0 and 1.4.1 don't have the function `force_text` which
replaces `force_unicode`, Django>=1.4.2 running in Python3 doesn't
expose `force_unicode`.

Change-Id: If15427d0cba3fd762beefaa0e956edfda003774a
graduate oslo middleware

Change-Id: I89bb65ea257e03da22b5558298e1e7f2ff3a72a6
Merge "Include tempurls in python-swiftclient"
Merge "graduate oslo middleware"
Merge "Don't use Django 1.4.0 nor 1.4.1"