Release 2.0.0 (only breaking change is MSRV bump)

Release 1.0.0, update README for Rust 2018 edition

Bump version to 0.1.2

Also drop `examples` attribute from Cargo.toml because it's no longer
meaningful.

Bump libc dependency to 0.2, and release 0.1.1

Fixes #5.

Bump to 0.1.0 for Mac support; update README

Bump version to 0.0.2

Add license (BSD-2-Clause)