Comment 16 for bug 1413823

Reviewed: https://review.openstack.org/212152
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=7a58d15aec5f2327fb7df9c9cffd2f06a019d837
Submitter: Jenkins
Branch: master

commit 7a58d15aec5f2327fb7df9c9cffd2f06a019d837
Author: Rob Cresswell <email address hidden>
Date: Wed Aug 12 19:47:59 2015 +0100

    Navigation + cleanup for details pages

    Adds a common detail page and a breadcrumb templatetag. The breadcrumb
    templatetag defaults to displaying the panel name and the existing page
    title, which is usually name_or_id. The templatetag can also access the
    context, and accepts a "custom_breadcrumb", for complex nested pages or
    customised layouts.

    This type of navigation is also useful for small devices (mobile/
    tablet), providing logical direction that isn't dependant on the
    sidebar being displayed.

    Currently implemented in Images, Volumes (simple breadcrumb), Ports and
    Subnets (more complex nesting).

    This approach has been chosen as manipulation of the URLs was seen as
    undesirable, making request.path too unreliable. Furthermore, the
    templatetag seperation means this could easily be used in other views.

    NOTE: The network details page itself will be updated following the
    resolution of https://bugs.launchpad.net/horizon/+bug/1416838

    Change-Id: I7443b2ffa61560e5d1fd4d6d91b11201f1db6fac
    Partial-Bug: 1413823