title: How to display the placeholder attribute in HTML5 textarea when CKEditor is activated?
body: <p>I have a textarea in a HTML5 website with a proper placeholder="Sample text" attribute. It is displaying nicely until I add RichText support through CKEditor. The CKEditor GUI is recreating the textarea and is not displaying the placeholder text inside. 
  Is there a way to display placeholders in CKEditor or switch some configuration options?</p>