/**
	 * Converts the given set of old taxonomy options into the new format.
	 *
	 * @since 3.1
	 * @param array $array The array of old fields
	 * @return array The new meta fields
	 */
	public static function convert_taxonomy_option( $arr ) {
		// Get the array data
		$tax = $arr['post_taxonomy'];
		$terms = $arr['post_terms'];
		$auto = $arr['post_auto_tax_terms'];
		$tags = $arr['post_tags'];
		$tags = $tags === 'false'? '' : $tags;

		// Construct the default taxonomy entry
		$default = array(
			'taxonomy'	=>	$tax,
			'terms'		=>	$terms,
			'auto'		=>	$auto
		);

		// Generate the new option
		$new = array( $default );

		// If the tags option is set, then we must save this as well, so that the user does not lose his/her settings
		if ( !empty($tags) ) {
			$tags = WPRSS_FTP_Utils::trim_explode(',', $tags);
			$new_tags = array();
			// Create the tags
			foreach( $tags as $tag ) {
				$exists = term_exists( $tag, 'post_tag' );
				if ( $exists === 0 || $exists === NULL ) {
					$exists = wp_insert_term( $tag, 'post_tag' );
				}
				$tag_id = $exists['term_id'];
				$tag_obj = get_term_by( 'id', $tag_id, 'post_tag' );
				$tag_slug = $tag_obj->slug;
				$new_tags[] = $tag_slug;
			}
			// Add another taxonomy entry for the tags
			$new[] = array(
				'taxonomy'	=>	'post_tag',
				'terms'		=>	$new_tags,
				'auto'		=>	'false'
			);
		}

		return $new;
	}