dojo.connect does'nt propagate return from original function

[mumme]

Hi !

When you dojo.connect to a function that returns a value, that value well be lost.

like this:

   var foo = {
      bar:function(){
         return "bar";
      }
   }

  dojo.connect(foo, 'bar', null, function(){
    console.debug('foo called');
  });

  console.debug('foo.bar()=', foo.bar()); // prints 'foo.bar()=' not 'foo.bar()=bar'

Attaching a somewhat uggly patch with a extended test.

/ Fredrik Johansson

[sjmiles]

(In [9338]) Repair blunder in connect, now connect target should correctly return it's value. Had to effect the change in the leak-proof listener also. Refs #3503.