Changelog for Tun2Proxy

0.1.1

Updated dependencies:
- chrono: v0.4, ready for next planned release ;
- clap: last version ;
- mio: v0.8 + rename renamed feature (os-util became os-ext) + some fixes due to removal of TcpSocket type ;
- smoltcp: set v0.8 but from crates.io, plus old reference could not work.
Fixes:
- Removed typo from Cargo.toml ;
- Clippy.