v0.6.0

What's Changed

• Environment variable support by @JamesWrigley in #12
• Channel closing safety by @JamesWrigley in #13
• SFTP support in the DemoServer by @JamesWrigley in #14
• Fix some concurrency bugs by @JamesWrigley in #15
• Add initial SFTP client support by @JamesWrigley in #16
• Refactor wait(::Session) so that the polling happens asynchronously by @JamesWrigley in #17
• Add support for Base.readdir() by @JamesWrigley in #18
• Moar SFTP moar better by @JamesWrigley in #19

Full Changelog: v0.5.0...v0.6.0