Client.HTTPWithTimeout: fixed constructor's docstring and comments

-named the diferences with respect to the overriden method
-fixed wrong reference to class in module 'httplib'
-added documentation of param 'timeout'
-removed redundant comments

src/SOAPpy/Client.py

@@ -135,17 +135,19 @@ class HTTPWithTimeout(HTTP):
 
     _connection_class = HTTPConnectionWithTimeout
 
-    ## this __init__ copied from httplib.HTML class
     def __init__(self, host='', port=None, strict=None, timeout=None):
-        "Provide a default host, since the superclass requires one."
+        """Slight modification of superclass (httplib.HTTP) constructor.
 
-        # some joker passed 0 explicitly, meaning default port
+        The only change is that arg ``timeout`` is also passed in the
+        initialization of :attr:`_connection_class`.
+
+        :param timeout: for the socket connection (seconds); None to disable
+        :type timeout: float or None
+
+        """
         if port == 0:
             port = None
 
-        # Note that we may pass an empty string as the host; this will throw
-        # an error when we attempt to connect. Presumably, the client code
-        # will call connect before then, with a proper host.
         self._setup(self._connection_class(host, port, strict, timeout))
 
 class HTTPTransport: