title: Meteor.call not behaving asynchronously with "imports" folder
body: <p>I am toying around the some of the tutorials, the todo list is structured as follows:
  The server main.js imports a file, tasks.js, which describes some operations (some of which are in a "IsServer" statement")
  The client main.jsx imports App.jsx which imports the same tasks.js file</p>
  
  <p>I wanted to add a call to an external service, so I've extended the server main.js (the one inside the /server folder) with a method like this:</p>
  
  <pre><code>Meteor.methods({
      calloutMethod: function(id){
          var apiUrl = 'http://someurl/'+id;      
          return HTTP.call(
          "GET", 
          apiUrl
          );
  
      },...
  </code></pre>
  
  <p>now in the tasks.js, this file is somewhere inside the import folder and is imported also from the client, I've added:</p>
  
  <pre><code>Meteor.methods({
      'tasks.insert'(id) {
      ...
  
  
      Meteor.call('calloutMethod', id, function(error, result){
      if(!error){
          console.log(result);
      }
  
  });
  </code></pre>
  
  <p>I would like to call the method tasks.insert from the client, this method should call the calloutMethod hosted on the server.</p>
  
  <p>When I put a console.log inside the server method I see the call happening and the result are displayed on the server console.. in the client console I immediately see "undefined" meaning that the callback function is immediately called:(</p>
  
  <p>Is it because of this hybrid "import folder" making confusion? In my understanding of the documentation using Metor.call('name',params, function(err,res){... should make an asynchronous call to the server method, why is it not happening?</p>