1.1.0.0

• Updated the servant dependency to >= 0.12.

1.0.0.0

• Add a ErrStatus class that can be used to set the HTTP Status Code. Given an endpoint that returns a Envelope '[e1, e2] a, you must declare an instance of ErrStatus for e1 and e2. This is a breaking change.

0.4.1.0

• Add NoThrow type to represent handlers that don't throw any errors, but do return a result wrapped in an Envelope.