Added unicode encoding declaration and modified the template to wrap `detail` in a div, not paragraph.  This is to allow subclasses (like the one for internal server errors) to use block-level elements in the detail.
Added unicode encoding declaration and modified the template to wrap `detail` in a div, not paragraph.  This is to allow subclasses (like the one for internal server errors) to use block-level elements in the detail.

marrow/wsgi.objects