Fixed #5854 -- Added an example to the newforms documentation showing how to

highlight required fields (which should also provide enough clues for
accessing other attributes on newforms.Field subclasses. Thanks,
christobzr@gmail.com.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6740 bcc190cf-cafb-0310-a4f2-bffc1f526a37