Update nitrokey crate to 0.2.3

This change updates the nitrokey crate to version 0.2.3. This version
bumps the rand crate used to 0.6.1, which in turn requires an additional
set of dependencies.

Import subrepo nitrokey/:nitrokey at b3e2adc5bb1300441ca74cc7672617c042f3ea31
Import subrepo rand/:rand at 73613ff903512e9503e41cc8ba9eae76269dc598
Import subrepo rustc_version/:rustc_version at 0294f2ba2018bf7be672abd53db351ce5055fa02
Import subrepo semver-parser/:semver-parser at 750da9b11a04125231b1fb293866ca036845acee
Import subrepo semver/:semver at 5eb6db94fa03f4d5c64a625a56188f496be47598

1 files changed, 182 insertions, 0 deletions

diff --git a/semver/src/lib.rs b/semver/src/lib.rs
new file mode 100644
index 0000000..a38aae0
--- /dev/null
+++ b/semver/src/lib.rs
@@ -0,0 +1,182 @@
+// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! Semantic version parsing and comparison.
+//!
+//! Semantic versioning (see http://semver.org/) is a set of rules for
+//! assigning version numbers.
+//!
+//! ## SemVer overview
+//!
+//! Given a version number MAJOR.MINOR.PATCH, increment the:
+//!
+//! 1. MAJOR version when you make incompatible API changes,
+//! 2. MINOR version when you add functionality in a backwards-compatible
+//!    manner, and
+//! 3. PATCH version when you make backwards-compatible bug fixes.
+//!
+//! Additional labels for pre-release and build metadata are available as
+//! extensions to the MAJOR.MINOR.PATCH format.
+//!
+//! Any references to 'the spec' in this documentation refer to [version 2.0 of
+//! the SemVer spec](http://semver.org/spec/v2.0.0.html).
+//!
+//! ## SemVer and the Rust ecosystem
+//!
+//! Rust itself follows the SemVer specification, as does its standard
+//! libraries. The two are not tied together.
+//!
+//! [Cargo](http://crates.io), Rust's package manager, uses SemVer to determine
+//! which versions of packages you need installed.
+//!
+//! ## Versions
+//!
+//! At its simplest, the `semver` crate allows you to construct `Version`
+//! objects using the `parse` method:
+//!
+//! ```{rust}
+//! use semver::Version;
+//!
+//! assert!(Version::parse("1.2.3") == Ok(Version {
+//!    major: 1,
+//!    minor: 2,
+//!    patch: 3,
+//!    pre: vec!(),
+//!    build: vec!(),
+//! }));
+//! ```
+//!
+//! If you have multiple `Version`s, you can use the usual comparison operators
+//! to compare them:
+//!
+//! ```{rust}
+//! use semver::Version;
+//!
+//! assert!(Version::parse("1.2.3-alpha") != Version::parse("1.2.3-beta"));
+//! assert!(Version::parse("1.2.3-alpha2") >  Version::parse("1.2.0"));
+//! ```
+//!
+//! If you explicitly need to modify a Version, SemVer also allows you to
+//! increment the major, minor, and patch numbers in accordance with the spec.
+//!
+//! Please note that in order to do this, you must use a mutable Version:
+//!
+//! ```{rust}
+//! use semver::Version;
+//!
+//! let mut bugfix_release = Version::parse("1.0.0").unwrap();
+//! bugfix_release.increment_patch();
+//!
+//! assert_eq!(Ok(bugfix_release), Version::parse("1.0.1"));
+//! ```
+//!
+//! When incrementing the minor version number, the patch number resets to zero
+//! (in accordance with section 7 of the spec)
+//!
+//! ```{rust}
+//! use semver::Version;
+//!
+//! let mut feature_release = Version::parse("1.4.6").unwrap();
+//! feature_release.increment_minor();
+//!
+//! assert_eq!(Ok(feature_release), Version::parse("1.5.0"));
+//! ```
+//!
+//! Similarly, when incrementing the major version number, the patch and minor
+//! numbers reset to zero (in accordance with section 8 of the spec)
+//!
+//! ```{rust}
+//! use semver::Version;
+//!
+//! let mut chrome_release = Version::parse("41.5.5377").unwrap();
+//! chrome_release.increment_major();
+//!
+//! assert_eq!(Ok(chrome_release), Version::parse("42.0.0"));
+//! ```
+//!
+//! ## Requirements
+//!
+//! The `semver` crate also provides the ability to compare requirements, which
+//! are more complex comparisons.
+//!
+//! For example, creating a requirement that only matches versions greater than
+//! or equal to 1.0.0:
+//!
+//! ```{rust}
+//! # #![allow(unstable)]
+//! use semver::Version;
+//! use semver::VersionReq;
+//!
+//! let r = VersionReq::parse(">= 1.0.0").unwrap();
+//! let v = Version::parse("1.0.0").unwrap();
+//!
+//! assert!(r.to_string() == ">= 1.0.0".to_string());
+//! assert!(r.matches(&v))
+//! ```
+//!
+//! It also allows parsing of `~x.y.z` and `^x.y.z` requirements as defined at
+//! https://www.npmjs.org/doc/misc/semver.html
+//!
+//! **Tilde requirements** specify a minimal version with some updates:
+//!
+//! ```notrust
+//! ~1.2.3 := >=1.2.3 <1.3.0
+//! ~1.2   := >=1.2.0 <1.3.0
+//! ~1     := >=1.0.0 <2.0.0
+//! ```
+//!
+//! **Caret requirements** allow SemVer compatible updates to a specified
+//! verion, `0.x` and `0.x+1` are not considered compatible, but `1.x` and
+//! `1.x+1` are.
+//!
+//! `0.0.x` is not considered compatible with any other version.
+//! Missing minor and patch versions are desugared to `0` but allow flexibility
+//! for that value.
+//!
+//! ```notrust
+//! ^1.2.3 := >=1.2.3 <2.0.0
+//! ^0.2.3 := >=0.2.3 <0.3.0
+//! ^0.0.3 := >=0.0.3 <0.0.4
+//! ^0.0   := >=0.0.0 <0.1.0
+//! ^0     := >=0.0.0 <1.0.0
+//! ```
+//!
+//! **Wildcard requirements** allows parsing of version requirements of the
+//! formats `*`, `x.*` and `x.y.*`.
+//!
+//! ```notrust
+//! *     := >=0.0.0
+//! 1.*   := >=1.0.0 <2.0.0
+//! 1.2.* := >=1.2.0 <1.3.0
+//! ```
+
+#![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
+       html_favicon_url = "https://www.rust-lang.org/favicon.ico")]
+#![deny(missing_docs)]
+#![cfg_attr(test, deny(warnings))]
+
+extern crate semver_parser;
+
+// Serialization and deserialization support for version numbers
+#[cfg(feature = "serde")]
+extern crate serde;
+
+// We take the common approach of keeping our own module system private, and
+// just re-exporting the interface that we want.
+
+pub use version::{Version, Identifier, SemVerError};
+pub use version::Identifier::{Numeric, AlphaNumeric};
+pub use version_req::{VersionReq, ReqParseError};
+
+// SemVer-compliant versions.
+mod version;
+
+// advanced version comparisons
+mod version_req;