How can I change the placeholder text in a drop down field that's using the Chosen enhanced user interface? I am using this for a country selection field. I'd like to change the default text "Select an Option" to "Choose a Country." My site is not yet live, so I can't post a URL. But what I am looking for is exactly what is shown on Harvest's GitHub page for Chosen, in the enhanced Standard Select field. See http://harvesthq.github.com/chosen/. Thanks!