PaulUithol/Backbone-relational — pull request #124 by ClemensSchneider (2012-05-11 16:24:32+00:00)
Title: added support to include more than one field when serializing toJSON

I have a use-case where I need to include more than one field (but not all fields) for the relations when they are serialized toJSON before being sent back to the server.
This pull request allows users to define an array containing field names for the 'includeInJSON' property.