Encountered several problems trying to work with Embedded Models (sample repo provided) #727

There are a few issues that I would like to bring to attention here:

Note: I am referencing https://docs.strongloop.com/display/public/LB/Embedded+models+and+relations

1. Code does not adhere to Embedded objects defined with "forceId": false and ids are created anyways.
2. From the link above, for EmbedsOne the "Helper methods" section defines methods that do not exist: customer.address.create() and customer.address.update()
3. From the link above, for EmbedsMany the "Helper methods" section defines methods that do not exist: customer.emails.add()
4. updateAttributes is available as a function on an EmbedsMany relation even though this is not listed in the documentation
5. API count on EmbedsMany method always returns 0:
   http://localhost:3000/api/providers/1/allRatings/ <-- returns an array with 2 objects:
   http://localhost:3000/api/providers/1/allRatings/count <-- returns: { "count": 0 }
6. Successive calls to model.save() with an EmbedsOne model after calling create() on an EmbedsMany within the EmbedsOne model triggers a duplicate key issue. Only way to solve problem is to manually call unsetAttribute('id'). (See function addRating() and lines 67-72 in /server/boot/data-preload.js to see what I mean)

The sandbox repo is located here: https://github.com/vanraizen/loopback-embedded-sandbox

The main demonstration code is located here: https://github.com/vanraizen/loopback-embedded-sandbox/blob/master/server/boot/data-preload.js

To run the sample code: "node server/server.js" and look at output