am dbab7e17: am 4ed5f502: am 4d159661: Merge "Revert "PreferencesFragment showing the breadcrumb area in single pane mode."" into klp-dev

* commit 'dbab7e1794f91e3dc4b0617df6fb59183c7349e5':
  Revert "PreferencesFragment showing the breadcrumb area in single pane mode."