Thanks tomwys for the suggestion.

Thanks Carl Meyer for the suggestion and Alex Gaynor and Carl for reviews.

* Removed trailing whitespace.
* Added newline to EOF if missing.
* Removed blank lines at EOF.
* Removed some stray tabs.

Should be unneeded with Python 2.7 and up.
Added some unicode_literals along the way.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16981 bcc190cf-cafb-0310-a4f2-bffc1f526a37

This applies to both our own [test] code and documentation examples. Also:
 * Moved the functions and handlers from `django.conf.urls.defaults` up to
   `django.conf.urls` deprecating the former module.
 * Added documentation for `handler403`.
 * Tweaked the URLs topic document a bit.

Thanks to pupeno and cdestigter for their great work contributing patches.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16818 bcc190cf-cafb-0310-a4f2-bffc1f526a37

Thanks to Tobias McNulty for the patch. Fixed #9310.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13769 bcc190cf-cafb-0310-a4f2-bffc1f526a37