* Use exit code
* Add macro_use to sys module
* Replace ExitCode with Result<usize, usize>
* Add status var
* Fix status code
* Replace status with ?
* Fix regex for var substitution
* Remove warnings
* Add temporary fix for failing tests
* Add q shortcut to calc
* Use usize for exit code
* Use process exit codes
* Reintroduce ExitCode enum
* Use ExitCode::UsageError where needed
* Display usage error in find command
* Add doc
* Fix slow zero-filled vector initialization
* Fix warnings in user command
* Fix clippy error in httpd command
* Fix warnings about using print instead println
* Fix length comparison to zero
* Fix some clippy warnings
* Fix length comparison to zero
* Fix some clippy warnings
* Fix some clippy warnings
* Fix bug introduced by clippy
* Move code to api
* Add palette::from_csv
* Refactor palette::from_str with tests
* Add tests to api::font::from_bytes
* Add TODO comments to fs code
* Rename kernel and user dirs to sys and usr
* Add missing files from migration
* Move console::Style to api
* Add more missing changes
Vincent Ollivier