add wrap_socket function to sslold module for better compatibility with ssl module

gevent/sslold.py

@@ -168,3 +168,15 @@ def ssl(sock, keyfile=None, certfile=None):
         # yes, do the handshake
         ssl_sock.do_handshake()
     return ssl_sock
+
+
+def wrap_socket(sock, keyfile=None, certfile=None,
+                server_side=None, cert_reqs=None,
+                ssl_version=None, ca_certs=None,
+                do_handshake_on_connect=None,
+                suppress_ragged_eofs=None):
+    for arg in ['cert_reqs', 'ssl_version', 'ca_certs', 'do_handshake_on_connect', 'suppress_ragged_eofs']:
+        if locals()[arg] is not None:
+            raise TypeError('To use argument %r install ssl package: http://pypi.python.org/pypi/ssl' % arg)
+    return ssl(sock, keyfile=keyfile, certfile=certfile)
+