How do I dispose of a Three.js Scene properly? (r55)

It seems like Three.js does not have a good way to dispose a THREE.Scene and all of the objects within that scene.

Currently I am doing the following:

  $.each(scene.__objects, function(idx, obj) {                               
    scene.remove(obj);                                                                                     
    if (obj.geometry) {                                                                                    
      obj.geometry.dispose();                                                                              
    }                                                                                                      
    if (obj.material) {                                                                                    
      if (obj.material instanceof THREE.MeshFaceMaterial) {                 
        $.each(obj.material.materials, function(idx, obj) {                 
          obj.dispose();                                                                                   
        });                                                                                                
      } else {                                                                                             
        obj.material.dispose();                                                                            
      }                                                                                                    
    }                                                                                                      
    if (obj.dispose) {                                                                                     
      obj.dispose();                                                                                       
    }                                                                                                      
  });             

Looking at the Chrome Heap