Update to the version of typeshed in mypy-0.4.2:
    
    - Added type annotations and small fixes
    - Add stub version of Type[C]
    - Don't use basestring in tempfile stub
    - Added stdlib/2.7/getopt.pyi, updated 3/getopt.pyi
    - Fix setsockopt signature.
    - specifiy Callable in sys.call_tracing
    - more closely fit to html.parser documentation
    - Improve email.*
    - add types to sys.getrefcount
    - complete urllib
    - add types to socket.socket.send{,all}
    - complete socketserver
    - complete ssl
    - Initial stubs for tkinter
    - Support for 'from six.moves import http_cookies'
    - Correct return value of round in Python 2.
    - Fixes a few tzinfo method's return type
    - Update calendar.pyi `timegm` to accept arbitrary length tuples