FIX: Changed default footer.
FIX: Item's corpus shouldn't be shown as clickable

in topic page.
FIX: Topic "path" should be shown instead of name

in item's page.
FIX: Unlink a topic just after linking it 

in item's page.
FIX: Style of attribute search dialog.

Caused by f9d977745f70d498502a7407ef3501db0daa58b4.