Add tool tips for buttons in detail view. New tooltips:
Reload - Reload current settings from the server.
Revert - Undo all unsaved changes.
Undo - Undo this change.
Undo all - Undo all changes in this field.
https://fedorahosted.org/freeipa/ticket/5428
Reviewed-By: Petr Vobornik <pvoborni@redhat.com>