The conduit library takes care of establishing and listening for TCP and SSL/TLS
connections for the Lwt and Async libraries.

The reason this library exists is to provide a degree of abstraction from the
precise SSL library used, since there are a variety of ways to bind to a library
(e.g. the C FFI, or the Ctypes library), as well as well as which library is
used (just OpenSSL for now).