WP-2622: export ds settings to feature.
WP-2622: ds settings and export field groups.
WP-2622: add wrapper settings.
WP-2622: Add hook_field_extra_fields() for faculty author.
WP-2622: Sort authors in correct order.
WP-2622: Add "Faculty Authors" label.
WP-2622: Add gsb_feature_book_ct_faculty_authors to exported field instance settings.
WP-2622: Add DS settings for field_authors.
WP-2684: ds settings for book teaser.
WP-2684: add space and spans.
Book CT: Adjust Book CT fields and form to new requirements.
Update fields more to spec.
Add search field.
WP-2718: remove taxonomy fields from display.
Remove academic degrees field. Hide alumni fields if alumni is not checked.
Move language inside the if statement.