steward 0.0.5

Task runner and process manager for Rust
Documentation
# Changelog

### 0.0.5
- Fix non-TLS build.

### 0.0.4
- Switch to 2021 Rust edition.
- Add dependant processes. See [docs]https://docs.rs/steward/latest/steward/dep/index.html.
- Add [`Cmd::spawn`]https://docs.rs/steward/latest/steward/cmd/struct.Cmd.html#method.spawn and [`Process::spawn`]https://docs.rs/steward/latest/steward/process/struct.Process.html#method.spawn methods.
- Expose [`RunningProcess`]https://docs.rs/steward/latest/steward/process/struct.RunningProcess.html. Add [`RunningProcess::stop`]https://docs.rs/steward/latest/steward/process/struct.RunningProcess.html#method.stop (`unix` only, for now).
- Add [`run`]https://docs.rs/steward/latest/steward/fn.run.html, [`run_mut`]https://docs.rs/steward/latest/steward/fn.run_mut.html and [`run_once`]https://docs.rs/steward/latest/steward/fn.run_once.html functions.

### 0.0.3
- Improve process pool output.

### 0.0.2
- Fix Windows build ([#1]https://github.com/alexfedoseev/steward/pull/1).

### 0.0.1
Initial release.