CSR UI does not work with CamelCasePropertyNamesContractResolver

Description

CSR UI assumes that the data is in Pascal casing, which is the less popular format.

Steps to reproduce:

1. Add this code to Quicksilver SiteInitialization.ConfigureContainer.

config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
                config.Formatters.JsonFormatter.UseDataContractJsonSerializer = false;

2. Build the site.
3. Go to the CSR UI.

Expected:
CSR UI should work independently with the site-wide data contract.

Actual:
CSR UI fails to load the carts.