Summary: Non-blocking HTTPS client

Description:
Same interface as Net::HTTPS but it will never try multiple reads when the
read_response_headers() or read_entity_body() methods are invoked. In
addition allows non-blocking connect.

* If read_response_headers() did not see enough data to complete the
headers an empty list is returned.

* If read_entity_body() did not see new entity data in its read the value
-1 is returned.

Maintainer: nobody