Source-file copyright and license notices, preserved verbatim.

===== src/lib.rs (source SHA-256 ced6ebd3622af527cbbbb09feb57a2894751ff07e7ca8f97f22bad89401e5c8d) =====
// -*- mode: rust; -*-
//
// This file is part of subtle, part of the dalek cryptography project.
// Copyright (c) 2016-2018 isis lovecruft, Henry de Valence
// See LICENSE for licensing information.
//
// Authors:
// - isis agora lovecruft <isis@patternsinthevoid.net>
// - Henry de Valence <hdevalence@hdevalence.ca>
