Add support for WYSIWYG

I just added a few lines in ajax_comments.js, in function ajax_comments_update_editors() and I could get it working with WYSIWYG & CKEditor.

Here is the code to add:

if(typeof(Drupal.wysiwygDetach) == 'function') {
Drupal.wysiwygDetach(jQuery('body'), { field: 'edit-comment' });
}

I didn't tried many other cases but it should work for most of them.