feats:

• reactive programing model with events listeners and watch()
• improve configuration file to add more fields, including environment vars
• real-world application using wasi-cloud: pingpong game? http server? web crawler?
• non-azure host implementations: aws account
• containerd running wasi-cloud app

refactoring:

• better error handling
• dynamic dispatcher
• better host state management
• more test coverage
• better CI pipeline
• better documentation