Merge top nav menus into brand dropdown, move breadcrumbs into top
nav, and lighten up the top nav.

refs #1979
Merge branch 'master' into 1979-workbench-ui
Move all index content into Recent and Help tabs.

refs #1979
Use object type or friendly_link_name as browser title.

refs #1979
Move show-object content into tabs.

refs #1979