title: nodejs mysql without callbacks
body: <p>Is there any way to execute mysql query synchronous? 
  something like </p>
  
  <pre><code>getUser:function(user_id){
    return mysql_connection.query("select ... ");
  },
  </code></pre>
  
  <p>to use it like  this</p>
  
  <pre><code>var user = getUser(id);
  </code></pre>