Improve docstrings

[cmcaine]

614471b (Colin Caine, 19 seconds ago)
Document SSLConfig methods

99dcf55 (Colin Caine, 34 seconds ago)
Give signature in docs for Base. methods

[cmcaine]

Otherwise using MbedTLS pollutes Base's docstrings:

help?> close
search: close CIPHER_BLOWFISH

  close(stream)

  Close an I/O stream. Performs a flush first.

  ──────────────────────────────────────────────

  close(c::Channel[, excp::Exception])

  Close a channel. An exception (optionally given by excp), is thrown by:

    •  put! on a closed channel.

    •  take! and fetch on an empty, closed channel.

  ──────────────────────────────────────────────

  Send a TLS close_notify message to the peer.

[quinnj]

Thanks!