title: bootstrap popover on input remove title
body: <p>I'm using bootstrap with bootstrap validator. I add error inside popover but when I add title to the input it appear in popover.</p>
  
  <p>I need popover without title but I want to add titles to inputs.</p>
  
  <pre><code>&lt;input title="Your name" 
         placeholder="Name" 
         data-toggle="popover" 
         class="form-control" 
         type="text" required&gt;
  </code></pre>
  
  <p>full code on <a href="https://jsfiddle.net/DTcHh/17255/" rel="nofollow">fiddle</a></p>