title: Angular not rendering italic text
body: <p>I am using tinymce in the backend and I have configured it to use italic  tags for rendering italic text:</p>
  
  <pre><code>formats: {
          bold: {inline: 'b'},
          italic: {inline: 'i'}
      },
      valid_elements: "b,i,b/strong,i/em",
  </code></pre>
  
  <p>For the frontend I am using angular and when I render the text like this:</p>
  
  <pre><code>&lt;div ng-bind-html="article.text" class="article-text"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>The text that is created has italic text and the html looks like this:</p>
  
  <pre><code>&lt;div ng-bind-html="article.text" class="article-text ng-binding"&gt;
       &lt;p&gt;&lt;i&gt;Italic&lt;/i&gt; &lt;strong&gt;bold&lt;/strong&gt;&lt;/p&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>But only the bold text is actually bold, the italic text is not rendered italic.
  How can I fix that?</p>