quicksilver 0.4.0-alpha0.3

A simple game framework for 2D games in pure Rust
Documentation
# Release Checklist


Copy this file into your PR to make a new release!

- [ ] Bump the version in `Cargo.toml`
- [ ] Update the example source code embedded in the website
- [ ] Update all the WASM binary examples for the website
- [ ] Verify, on each major platform, that all examples work correctly
- [ ] Ensure *all* dependencies are up-to-date
- [ ] Make a git tag for the release (done after merging)