Merge #119: Release v0.10.0-alpha

202df4f Bump version to 0.10.0-alpha (Tobin C. Harding)

Pull request description:

  In preparation for doing an `alpha` release of the new `primitives` crate bump the version to `0.10.0-alpha` and add a changelog entry.

  Let's Go!

ACKs for top commit:
  apoelstra:
    ACK 202df4f

Tree-SHA512: 0509b5d9cbb1fa2761b76b5f5c6e0312e726b66427eccc85c4996e41ead8ed1571b26d6cea645e769afafa3f68712de930b4340e8ca125c643b4f943706c9397

CHANGELOG.md

@@ -1,6 +1,8 @@
-# unreleased (0.10.0)
+# 0.10.0-alpha
 
-- [Implement `std::error::Error::source` for error type](https://github.com/rust-bitcoin/rust-bech32/pull/72)
+This release introduces a new `primitives` module that is basically a new implementation of the
+whole crate. We also add a `segwit` module but we have not yet settled on the exact new API in
+`lib.rs`, hence the `alpha` release.
 
 # 0.9.1
 
@@ -10,4 +12,4 @@
 # 0.9.0
 
 - [Enable edition 2018](https://github.com/rust-bitcoin/rust-bech32/pull/57) bumping MSRV to 1.41.1
-- [Implement `From<u5> for u8`](https://github.com/rust-bitcoin/rust-bech32/pull/58)
+- [Implement `From<u5> for u8`](https://github.com/rust-bitcoin/rust-bech32/pull/58)

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "bech32"
-version = "0.9.1"
+version = "0.10.0-alpha"
 authors = ["Clark Moody", "Andrew Poelstra", "Tobin Harding", "The rust-bitcoin developers"]
 repository = "https://github.com/rust-bitcoin/rust-bech32"
 documentation = "https://docs.rs/bech32/"