// License: see LICENSE file at root directory of `master` branch
//! # `0.4.0` _(March 28th, 2019)_
//!
//! ---
//!
//! ## Changes
//!
//! - Switched to Nice License 1.0.0 _(see LICENSE file at root directory of `master` branch)_.
//! - [`Client::book()`][::Client::book()]: server port parameter is now an `Option<u16>`. If `None` is provided,
//! [`DEFAULT_PORT`][::DEFAULT_PORT] will be used.
//! - Updated dependencies.
//!
//! ## Dependencies
//!
//! - [`blackhole = { version='0.14', optional=true }`][crate:blackhole]
//! - [`dia-args = { version='0.24', optional=true }`][crate:dia-args]
//! - [`libc = { version='0.2', optional=true }`][crate:libc]
//! - [`zeros = { version='0.3', optional=true }`][crate:zeros]
//!
//! [::DEFAULT_PORT]: ../server/constant.DEFAULT_PORT.html
//! [::Client::book()]: ../client/struct.Client.html#method.book
//!
//! [crate:blackhole]: https://bitbucket.org/haibison/blackhole-rs
//! [crate:dia-args]: https://bitbucket.org/haibison/dia-args
//! [crate:libc]: https://crates.io/crates/libc
//! [crate:zeros]: https://bitbucket.org/haibison/zeros