Increase radium dependency to 0.3

This closes #36, as the `bitvec` dependency tree is now able to
compile for the `thumbv7m-none-eabi` target. See the `radium`
project for more information.

Tested locally:

`$ cargo build --no-default-features --target thumbv7m-none-eabi`

succeeds. I do not have the environment to run `bitvec` on this
target; I presume that successful compilation means a correct
artifact.

CHANGELOG.md

@@ -4,6 +4,15 @@ All notable changes will be documented in this file.
 
 This document is written according to the [Keep a Changelog][kac] style.
 
+## 0.16.2
+
+### Fixed
+
+Updated `radium` dependency to `0.3`, which enables it to compile on the
+`thumbv7m-none-eabi` target. This addresses [Issue #36], which noted that
+`bitvec` failed to compile for that target due to reduced support for atomic
+types in `core`. Thanks to GitHub user [@lynaghk] for the report.
+
 ## 0.16.1
 
 This is a hotfix for [Issue #33], filed by GitHub user [@jonas-schievink].
@@ -579,6 +588,7 @@ Initial implementation and release.
 [@geq1t]: https://github.com/geq1t
 [@jonas-schievink]: https://github.com/jonas-schievink
 [@koushiro]: https://github.com/koushiro
+[@lynaghk]: https://github.com/lynaghk
 [@overminder]: https://github.com/overminder
 [@ratorx]: https://github.com/ratorx
 [@schomatis]: https://github.com/schomatis
@@ -592,5 +602,6 @@ Initial implementation and release.
 [Issue #16]: https://github.com/myrrlyn/bitvec/issues/16
 [Issue #28]: https://github.com/myrrlyn/bitvec/issues/28
 [Issue #33]: https://github.com/myrrlyn/bitvec/issues/33
+[Issue #36]: https://github.com/myrrlyn/bitvec/issues/36
 [`Sync`]: https://doc.rust-lang.org/stable/core/marker/trait.Sync.html
 [kac]: https://keepachangelog.com/en/1.0.0/

Cargo.toml

@@ -6,7 +6,7 @@
 
 [package]
 name = "bitvec"
-version = "0.16.1"
+version = "0.16.2"
 authors = [
 	"myrrlyn <self@myrrlyn.dev>",
 ]
@@ -44,7 +44,7 @@ std = [
 ]
 
 [dependencies]
-radium = "0.2"
+radium = "0.3"
 
 [dependencies.either]
 default-features = false