Commented Issue: SingleResult cannot be serialized by OData formatter [1021]

```
public SingleResult<Customer> GetCustomers(int id)
{
return new SingleResult<Customer>(_db.Customers.Where(c => c.ID == id));
}
```

Requesting the URL ~/Customers(42) gives back a 406.
Comments: https://aspnetwebstack.codeplex.com/SourceControl/changeset/1c7dc46b1afeaab550bc7c74ce9485bb5ee1e9be