Problem Marshaling Date Type

[AlexCuse]

It doesn't look like the JSON package is respecting the Date type's MarshalJSON implementation for one reason or another. I am seeing this when trying to pass the PreviousDay quote between two microservices but assume it is an issue elsewhere as well.

You should see the problem in action here: https://play.golang.org/p/ALtnfO0vTHr

[AlexCuse]

Looks like the problem is the pointer receiver for MarshalJSON. PR incoming.