Make URLs work with or without trailing slash

[tylerdave]

In #4 we noticed that a link to a URL with a slash was returning a 404 while the URL without the slash was valid. Django has an APPEND_SLASH setting that would cause all URLs to have a trailing slash. I'd prefer the opposite. It seems this snippet does what we want:

https://djangosnippets.org/snippets/2655/

[befreeman]

As an FYI - the above snippet works as expected, but there is a complication. Some of the Django app routes used by the site redirect URLs without a trailing slash to have a trailing slash and wind up in a non-terminating redirect loop.