too many steps required to delete a neutron router

[Miguel Grinberg]

The procedure to delete a router is currently as follows:

1. from the router list page, enter the router page and delete any interfaces attached
2. go back to the router list
3. delete router

The interfaces should be automatically detached from the router so that the user can simply hit "delete router" from the router list page.

It is important to note that the delete router option in the admin section does everything in a single step.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/132742

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/132742
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=b37fa64bdd27677975b5b9c6b995a653abb01c32
Submitter: Jenkins
Branch: master

commit b37fa64bdd27677975b5b9c6b995a653abb01c32
Author: Miguel Grinberg <email address hidden>
Date: Wed Nov 5 01:46:28 2014 +0000

    Automatically remove interfaces on router delete

    This change removes all attached interfaces from a router when it
    is deleted from the project dashboard. This was only being done when
    the router was deleted from the admin dashboard.

    Change-Id: Ic0b639bfad7451bb5acbf486c39e349c938723db
    Closes-Bug: 1384400