title: Three.js SubdivisionModifier "computeEdgeFaces" error
body: <p>I'm doing a project with SubdivisionModifier but i got this error in firefox console: </p>
  
  <p>"TypeError: computeEdgeFaces is not a function"</p>
  
  <p>How can i fix it?</p>
  
  <p>Here my create scene code:</p>
  
  <pre><code>   function createScene(geometry, scale, material) {
  
       var modifier = new THREE.SubdivisionModifier(3);
  
       geometry.mergeVertices();
       geometry.computeCentroids();
       geometry.computeFaceNormals();
       geometry.computeVertexNormals();
  
       modifier.modify(geometry);
  
       mesh = new THREE.Mesh(geometry, material);
  
       mesh.scale.x = mesh.scale.y = mesh.scale.z = scale;
  
       scene.add(mesh);
     }
  </code></pre>
  
  <p>This is the whole code: <a href="http://jsfiddle.net/user972611/yYRP5/" rel="nofollow">http://jsfiddle.net/user972611/yYRP5/</a></p>
  
  <p>Thanks. </p>
  
  <p>Three.js R64</p>