Support for multiple order by parameters

[cgwrench]

OData supports the use of multiple orderby parameters, for example:

http://services.odata.org/TripPinRESTierService/(S(gnk5dd3kd4d4i2drt2r2pn41))/People('scottketchum')/Trips?$orderby=StartsAt%20desc,EndsAt%20desc

However, it appears that joData only accepts a single parameter via the orderBy method.

Adding support for multiple orderby parameters could be done by modifying the existing orderBy method to accept multiple properties, or by introducing a thenBy method that can be used to chain multiple orderby parameters.

Is such a feature something that you'd like to see added to joData? If so, I am happy to begin work on such a feature.

Thanks for a great library,

Chris