Only enable auth_token in swift with keystone

We don't need to enable auth_token in pipeline when we don't have
keystone enabled.

Change-Id: I4695817766fc39fcceed32f71156d4123d5bdfa1
Adds support for multi-region

Change-Id: Ib85fe7cb375692b04aca4c46f61ba7e1fbfa501b
Implements: blueprint multi-region
Install oslo.i18n from source

Add a step to install oslo.i18n from source.

Change-Id: Ie041d4b82ca75a1c2ff99563a7a87447adc57ad2
Merge "Only enable auth_token in swift with keystone"
Merge "Install oslo.i18n from source"
Revert "Add missing config option os_auth_url"

This reverts commit 524bbed05ce9de0bd711aa18c35afa4476978404.

Change-Id: I0dc3ec7a55cb65bd2a5ff76f32b3d99f8962597b
Merge "Adds support for multi-region"
Merge branch 'master' of github.com:openstack-dev/devstack