Add Cargo.lock
Add Cargo.lock

Cargo.lock should be committed for binaries:
<http://doc.crates.io/faq.html#why-do-binaries-have-cargolock-in-version-control-but-not-libraries>

WPO-Foundation/gnirehtet,WPO-Foundation/gnirehtet,Genymobile/gnirehtet,WPO-Foundation/gnirehtet,Genymobile/gnirehtet,Genymobile/gnirehtet,WPO-Foundation/gnirehtet