Expose the field crop image settings.

#4373 
This PR need to solve two major things:
* [ ] When pulling the image get the crop settings. This will allow us to display the person image in the copied node exactly like the original node.
* [ ] Adding a security token for the page callbacks. With the token we can secure the operation of pulling/editing nodes and deny access for deleting listeners from the source node by non-authorized people.
* [x] #5120