0.11.0

• Props/API handlers can now return status and statusText at the top level (before they had to be wrapped in options).
• Support redirects from props handlers by just returning a 3xx status code and a Location header.
• Errors thrown in props/API handlers are automatically parsed as JSON responses and passed to page components as props.
• Provided a set of common error constructors (e.g. throw new BadRequestError('yikes', { inputs: ['email'] })) and a way to extend them.