[PATCH] SSL detection fails when behind a load balancer

Hello,

Under 1.5 of this plugin, SSL is not detected as active when using a load balancer.

To correct this the plugin needs to check for the X-FORWARDED-PROTO header:

$is_ssl = false;
                       	if ( isset( $_SERVER['HTTP_X_FORWARDED_PROTO'] ) ) {
                               	// Something is sat in front of us, assume it knows best
                               	$is_ssl = strtolower( $_SERVER['HTTP_X_FORWARDED_PROTO'] ) === 'https' ? true : false;
                        } else {
                               	if ( ( function_exists( 'getenv' ) and
                                               	( ( getenv( 'HTTPS' ) != '' and getenv( 'HTTPS' ) != 'off' )
                                                       	or
                                                        ( getenv( 'SERVER_PORT' ) == '433' ) ) )
                                        or
                                       	( isset( $_SERVER ) and
                                                ( ( isset( $_SERVER['HTTPS'] ) and $_SERVER['HTTPS'] !='' and $_SERVER['HTTPS'] != 'off' )
                                                       	or
                                                        ( isset( $_SERVER['SERVER_PORT'] ) and $_SERVER['SERVER_PORT'] == '443' ) ) ) ) {
                                       	$is_ssl = true;
                               	}
                       	}
                       	$this->is_ssl = $is_ssl;

http://wordpress.org/extend/plugins/use-google-libraries/