Fix exception in TempalteOutput if a template calls out(undefined);
Fix exception in TempalteOutput if a template calls out(undefined);

mdittmer/foam,mdittmer/foam,osric-the-knight/foam,osric-the-knight/foam,jlhughes/foam,jacksonic/foam,foam-framework/foam,mdittmer/foam,osric-the-knight/foam,jlhughes/foam,foam-framework/foam,jlhughes/foam,jlhughes/foam,jacksonic/foam,jacksonic/foam,osric-the-knight/foam,mdittmer/foam,jacksonic/foam,foam-framework/foam,foam-framework/foam,foam-framework/foam