Incorrect url with metadef resource types

[wangxiyuan]

In glance api v2,according to the code:

https://github.com/openstack/glance/blob/master/glance/api/v2/router.py#L217

 the url GET the list resource types should be /v2/metadefs/resource_types, not /v2/metadefs/.

If send /v2/metadefs/, it will return:

404 Not Found
The resource could not be found.

[wangxiyuan (wangxiyuan)]

ptach link: https://review.openstack.org/#/c/195917/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/195917
Committed: https://git.openstack.org/cgit/openstack/api-site/commit/?id=2dfe5a52619660cb7e5a9da59e3d6262e5fbe4b5
Submitter: Jenkins
Branch: master

commit 2dfe5a52619660cb7e5a9da59e3d6262e5fbe4b5
Author: wangxiyuan <email address hidden>
Date: Fri Jun 26 16:31:22 2015 +0800

    Fix metadef resource types url

    The GET URL of List resource types should be /v2/metadefs/resource_types.

    Closes-bug:#1470704
    Change-Id: Ib7f882a8df1e981914c54b260794f60eba0a57ee