Deal with request's urllib3 being annoying about 'strict'

These changes are required to get tests to pass in python3.4 (and
presumably others).

This is entirely code from @sashahart, who had done the work earlier
to deal with with some Debian related issues uncovered by @thomasgoirand.

These changes will probably mean the debian packages will need to be
updated when the next version is released.

wsgi_intercept/requests_intercept.py

@@ -1,6 +1,8 @@
 """Intercept HTTP connections that use `requests <http://docs.python-requests.org/en/latest/>`_.
 """
 
+import sys
+
 from . import WSGI_HTTPConnection, WSGI_HTTPSConnection, wsgi_fake_socket
 from requests.packages.urllib3.connectionpool import (HTTPConnectionPool,
         HTTPSConnectionPool)
@@ -12,11 +14,19 @@ wsgi_fake_socket.settimeout = lambda self, timeout: None
 
 
 class HTTP_WSGIInterceptor(WSGI_HTTPConnection, HTTPConnection):
-    pass
+    def __init__(self, *args, **kwargs):
+        if 'strict' in kwargs and sys.version_info > (3, 0):
+            kwargs.pop('strict')
+        WSGI_HTTPConnection.__init__(self, *args, **kwargs)
+        HTTPConnection.__init__(self, *args, **kwargs)
 
 
 class HTTPS_WSGIInterceptor(WSGI_HTTPSConnection, HTTPSConnection):
-    pass
+    def __init__(self, *args, **kwargs):
+        if 'strict' in kwargs and sys.version_info > (3, 0):
+            kwargs.pop('strict')
+        WSGI_HTTPSConnection.__init__(self, *args, **kwargs)
+        HTTPSConnection.__init__(self, *args, **kwargs)
 
 
 def install():