Fix the definition of "data" argument to
{ type: 'object', model: modelName, ... }
That way strong-remoting passed the request body directly to the model
method (does not create a new model instance), but the swagger will
still provide correct schema for these arguments.
This fixes a bug where upsert in relation methods was adding default
property values to request payload.
*Re-mapping `updateAttributes` endpoint to use
`PATCH` and `PUT`(configurable) verb
*Exposing `replaceById` and `replaceOrCreate` via
`POST` and `PUT`(configurable) verb