Remove strict option from JSON schema validator This allows to have keys in the response that are not specified in the schema, which we do not want, but it also actually uses the "required" key of the schema telling which keys are required in the response and which are optional (this is what we definitely need).

move helper methods into common file This allows both specs and features to benefit from the helper methods.

do not use json-schema cache.

add a json-schema matcher to rspec This utilizes the json-schema gem in order to be able to validate responses/strings against a json-schema.