bitbucket group elsewhere is 500

[chadwhitacre]

This is 500: https://www.gittip.com/on/bitbucket/pypy/.

However, this is not: https://www.gittip.com/on/bitbucket/eldarion/.

Traceback (most recent call last):
  File "site-packages/algorithm.py", line 288, in run
    new_state = function(**deps.as_kwargs)
  File "aspen/algorithms/website.py", line 88, in get_response_for_resource
    return {'response': resource.respond(request)}
  File "aspen/resources/dynamic_resource.py", line 52, in respond
    exec self.pages[1] in context
  File "/app/www/on/bitbucket/%username/index.html.spt", line 69, in <module>
    resp = requests.get(next_url)
  File "requests/api.py", line 55, in get
    return request('get', url, **kwargs)
  File "requests/api.py", line 44, in request
    return session.request(method=method, url=url, **kwargs)
  File "requests/sessions.py", line 324, in request
    prep = req.prepare()
  File "requests/models.py", line 222, in prepare
    p.prepare_url(self.url, self.params)
  File "requests/models.py", line 288, in prepare_url
    scheme, auth, host, port, path, query, fragment = parse_url(url)
  File "requests/packages/urllib3/util.py", line 156, in parse_url
    raise LocationParseError("Failed to parse: %s" % url)
LocationParseError: Failed to parse: Failed to parse: bitbucket.orghttps:

https://app.getsentry.com/gittip/gittip/group/15147412/

[Changaco]

This was fixed by #1369.