TCs in plugins/htmldataprocessor broken in all browsers

[Garry Yao]

1. test_ticket_3591 broken in IE because of the namespace, we should change to TC, adapting to it:

   <?xml:namespace prefix="cke" />
   

2. test_ticket_3884/test_ticket_3591_2 broken in IE because of attribute sequence changing, we should custom the writer rules instead of just using the basic writer.
3. test_innerHtmlComments_ticket_3801 broken in all browser because of page element missing.

[Artur Formella]

Replying to garry.yao:

2. test_ticket_3884/test_ticket_3591_2 broken in IE because of attribute sequence changing, we should custom the writer rules instead of just using the basic writer.

DUP of #4136

[Artur Formella]

Replying to garry.yao:

3. test_innerHtmlComments_ticket_3801 broken in all browser because of page element missing.

DUP of #3975 fixed with [4006]

[Artur Formella]

Fixed with [4018]