JSON Schema 4 Support

[phs]

It appears that the json-schema gem now supports json schema 4. It would be delightful if

• interpol endpoints could declare what version of json schema they are coded against
• the correct validator was selected based on this.

related issue: #32

[myronmarston]

Interesting. I'd be curious to hear what the differences in v4 are.

[phs]

Mostly v4 is the version of the docs you find if you google 'json schema' and aren't paying attention. Also the way you articulate required attributes changes.