LP#1281678 Fixed field context menus should trigger close confirmation dialog

Same for using the Physical Characteristics Wizard.

Thanks Dan Wells for the spot.

Signed-off-by: Lebbeous Fogle-Weekley <lebbeous@esilibrary.com>
Signed-off-by: Remington Steed <rjs7@calvin.edu>
Signed-off-by: Dan Wells <dbw2@calvin.edu>