title: TinyMCE strips off br tags in p tag
body: <p>Here is the config I am using in <code>tinymce.init</code> function:</p>
  
  <pre><code>forced_root_block: 'p'
  valid_elements : '+a[id|rel|rev|charset|hreflang|dir|lang|tabindex|accesskey|type|name|href|target|title],strong/b,-em,i,strike,u,script,p[class|id|dir|align|style],ol,ul,li,br'
  </code></pre>
  
  <p>But the <em>tinyMCE</em> is stripping of <code>&lt;br&gt;</code>'s when we hit enter key.
  Something like this:</p>
  
  <pre><code>    &lt;p&gt;&lt;br/&gt;&lt;/p&gt;
  </code></pre>
  
  <p>is getting sent as </p>
  
  <pre><code>    &lt;p&gt;&lt;/p&gt;
  </code></pre>
  
  <p>Does anyone know why this is happening
  I am using <strong>tinyMCE version 3.5.4.1</strong>.</p>