7a58d15aec
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