title: Ace editor's setAnnotations won't stay permanent
body: <p>I have trouble getting my annotation to stay. See this jsfiddle: <a href="http://jsfiddle.net/c8k45yw1/5/" rel="nofollow">http://jsfiddle.net/c8k45yw1/5/</a></p>
  
  <p>What you will see is line 2, which I set manually, will have "X" mark appear for half a second before it disappear. Thoughts?</p>
  
  <pre><code>var editor = ace.edit("editor");
  editor.setTheme("ace/theme/chrome");
  editor.getSession().setMode("ace/mode/javascript");
  //editor.session.setBreakpoint(2);
  editor.getSession().setAnnotations([{
    row: 1,
    column: 0,
    text: "Strange error",
    type: "error" // also warning and information
  }]);
  </code></pre>