v2.0.0

Changes

• waitForNextUpdate now automatically wraps the promise in an async act call, preventing the warning from #14

Breaking Changes

• Async act calls have increased the minimum react-test-renderer version to `16.9.0
• Opened the version range for @types/react and @types/react-test-renderer to be a bit more lenient in an attempt to resolve #110 (let me know if this is still an issue).