Update rand_core version number and changelog for 0.2.1.

Author: dhardy

rand_core/CHANGELOG.md

@@ -4,6 +4,8 @@ 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] - 2018-06-08
+- References to a `CryptoRng` now also implement `CryptoRng`. (#470)
 
 ## [0.2.0] - 2018-05-21
 - Enable the `std` feature by default. (#409)

rand_core/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rand_core"
-version = "0.2.0" # NB: When modifying, also modify html_root_url in lib.rs
+version = "0.2.1" # NB: When modifying, also modify html_root_url in lib.rs
 authors = ["The Rust Project Developers"]
 license = "MIT/Apache-2.0"
 readme = "README.md"

rand_core/src/lib.rs

@@ -35,7 +35,7 @@
 
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk.png",
        html_favicon_url = "https://www.rust-lang.org/favicon.ico",
-       html_root_url = "https://docs.rs/rand_core/0.2.0")]
+       html_root_url = "https://docs.rs/rand_core/0.2.1")]
 
 #![deny(missing_docs)]
 #![deny(missing_debug_implementations)]