"maximum recursion depth exceeded" in make_URL_secure()

[Hasenkopf, Andreas]

Even if never encountered during testing, Google bot can cause a RuntimeError on the page /users/login:

Traceback (most recent call last):

  File "/usr/local/lib/python2.6/dist-packages/django/core/handlers/base.py", line 114, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)

  File "/usr/local/lib/python2.6/dist-packages/django/utils/decorators.py", line 99, in _wrapped_view
    response = view_func(request, *args, **kwargs)

  File "/home/andi/aintnowiki/wiki/decorators.py", line 12, in _wrapped_view_func
    return view_func(request, *args, **kwargs)

  File "/home/andi/aintnowiki/users/views.py", line 244, in userlogin
    },request,make_URL_secure(nextpage))

  File "/home/andi/aintnowiki/users/views.py", line 133, in make_URL_secure
    return make_URL_secure(settings.HOST_ADDR+reg.groups()[1])
[...]
  File "/home/andi/aintnowiki/users/views.py", line 116, in make_URL_secure
    if not getattr(settings,'HTTPS_SUPPORT',True):

RuntimeError: maximum recursion depth exceeded

<WSGIRequest
path:/users/login/,
GET:<QueryDict: {u'/users/login/': [u'/wiki/revision/127/exercise-problems-iii/']}>,
POST:<QueryDict: {}>,
[...]
'QUERY_STRING': '/users/login/=/wiki/revision/127/exercise-problems-iii/',
[...]
'SCRIPT_URI': 'https://www.example.com/users/login/',
'SERVER_NAME': 'www.example.com',
'REQUEST_METHOD': 'GET',
'REQUEST_URI': '/users/login/?/users/login/=/wiki/revision/127/exercise-problems-iii/',

[Hasenkopf, Andreas (andi-hasenkopf)]

Fixed regular expression in function make_URL_secure() to also identify URLS starting with "//".