docs: Updated docstrings for timeout to be float instead of int (#631)

Fixes the docstrings for timeouts to indicate a `float` type, not `int`.

twilio/base/domain.py

@@ -4,6 +4,7 @@ class Domain(object):
 
     Like, `api.twilio.com` or `lookups.twilio.com'.
     """
+
     def __init__(self, twilio):
         """
         :param Twilio twilio:
@@ -30,7 +31,7 @@ def request(self, method, uri, params=None, data=None, headers=None,
         :param object data: The request body.
         :param dict headers: The HTTP headers.
         :param tuple auth: Basic auth tuple of (username, password)
-        :param int timeout: The request timeout.
+        :param float timeout: The request timeout.
         :param bool allow_redirects: True if the client should follow HTTP
         redirects.
         """

twilio/http/http_client.py

@@ -22,8 +22,8 @@ def __init__(self, pool_connections=True, request_hooks=None, timeout=None, logg
 
         :param bool pool_connections
         :param request_hooks
-        :param int timeout: Timeout for the requests.
-                            Timeout should never be zero (0) or less.
+        :param float timeout: Timeout for the requests.
+                              Timeout should never be zero (0) or less.
         :param logger
         :param dict proxy: Http proxy for the requests session
         :param int max_retries: Maximum number of retries each request should attempt