authentication fails by keystonemiddleware

[zengchen]

It is failed when accessing Smaug by API, because the authentication fails by keystonemiddleware.
Smaug should be registered on Keystone when installing it.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/258768
Committed: https://git.openstack.org/cgit/openstack/smaug/commit/?id=cc5931e7e4f1095bf431178b195d949c04a2da43
Submitter: Jenkins
Branch: master

commit cc5931e7e4f1095bf431178b195d949c04a2da43
Author: zengchen <email address hidden>
Date: Thu Dec 17 10:47:54 2015 +0800

    Authentication fails by keystonemiddleware

    In order to make the access to Smaug by APIs pass througth the
    authentication of keystonemiddleware, I add a function named
    "create_smaug_accounts" in the plugin.sh, which will create an
    account in Keystone.

    There are 4 steps in "create_smaug_accounts":
    1. create a user "smaug".
    2. bind the user with the project "service" and grant the role
       "service" to the user.
    3. create a service "smaug".
    4. create an endpoint of service.

    Closes-Bug: #1526638
    Change-Id: I7644e568a8912f48e54b15cf897afe67a81c2e4a