Fix for Bug 6754, Improve breadcrumbs on lists pages

Fix for Bug 6754, Improve breadcrumbs on lists pages

Breadcrumb navigation on the lists pages should give the user links back to the
category of list they're viewing, public or private.

Patch changes this:

Lists -> Contents of (Your list)

To this:

Lists -> Your lists -> Contents of (Your list)

Signed-off-by: Nicole C. Engard <nengard@bywatersolutions.com>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
(cherry picked from commit 02f1058a80c4bd4f28331ce389c71a32b3fe1294)

Signed-off-by: Chris Nighswonger <chris.nighswonger@gmail.com>