Jake async complete

task('foo', {async: true}, function () {
  console.log('entered foo');
  setTimeout(complete, 10);
  console.log('after foo timeout');
});

task('default', {async: true}, function () {
  var t = jake.Task.foo;
  t.on('complete', function () {
    console.log('foo completed');
    complete();
  }); 
  console.log('invoking foo');
  t.invoke();
  console.log('after invoking foo');
});

/*
Output is what I expect:

mdes-mbp-2:jaketest mde$ jake
invoking foo
entered foo
after foo timeout
after invoking foo
foo completed

*/