CodeMirror 2: XML mode
    
    
    The XML mode supports two configuration parameters:
    
      htmlMode (boolean) 
      - This switches the mode to parse HTML instead of XML. This
      means attributes do not have to be quoted, and some elements
      (such as 
br) do not require a closing tag. 
      alignCDATA (boolean) 
      - Setting this to true will force the opening tag of CDATA
      blocks to not be indented.
 
    
    MIME types defined: application/xml, text/html.