Update nitrokey crate to 0.4.0

This change finally updates the version of the nitrokey crate that we
consume to 0.4.0. Along with that we update rand_core, one of its
dependencies, to 0.5.1. Further more we add cfg-if in version 0.1.10 and
getrandom in version 0.1.13, both of which are now new (non-development)
dependencies.

Import subrepo nitrokey/:nitrokey at e81057037e9b4f370b64c0a030a725bc6bdfb870
Import subrepo cfg-if/:cfg-if at 4484a6faf816ff8058088ad857b0c6bb2f4b02b2
Import subrepo getrandom/:getrandom at d661aa7e1b8cc80b47dabe3d2135b3b47d2858af
Import subrepo rand/:rand at d877ed528248b52d947e0484364a4e1ae59ca502

1 files changed, 32 insertions, 0 deletions

diff --git a/rand/rand_jitter/CHANGELOG.md b/rand/rand_jitter/CHANGELOG.md
new file mode 100644
index 0000000..9f4bb7e
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+++ b/rand/rand_jitter/CHANGELOG.md
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+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.2.1] - 2019-08-16
+### Changed
+- `TimerError` changed to `repr(u32)` (#864)
+- `TimerError` enum values all increased by `1<<30` to match new `rand_core::Error` range (#864)
+
+## [0.2.0] - 2019-06-06
+- Bump `rand_core` version
+- Support new `Error` type in `rand_core` 0.5
+- Remove CryptoRng trait bound (#699, #814)
+- Enable doc-testing of README
+
+## [0.1.4] - 2019-05-02
+- Change error conversion code to partially fix #738
+
+## [0.1.3] - 2019-02-05
+- Use libc in `no_std` mode to fix #723
+
+## [0.1.2] - 2019-01-31
+- Fix for older rustc compilers on Windows (#722)
+
+## [0.1.1] - 2019-01-29
+- Fix for older rustc compilers on Mac OSX / iOS (#720)
+- Misc. doc fixes
+
+## [0.1.0] - 2019-01-24
+Initial release.