title: Adding ! after click in event trigger doesn't work
body: <pre><code>$("div").bind("click", function() {
      $("body").append("&lt;p&gt;click event&lt;/p&gt;");
  }).bind("click.plugin", function() {
      $("body").append("&lt;p&gt;click.plugin event&lt;/p&gt;");
  })
  
  $("button").click(function() {
      $("div").trigger("click!");  
  });
  </code></pre>
  
  <p>In book said that <code>!</code> is to match all <code>click</code> methods which don't include in namespace. That means <code>click</code> the button only execute <code>click</code> event！</p>
  
  <p>But this trigger doesn't work.</p>