ASMX to WCF Facade Technique for REST

When an "out-of-SaaSGrid" client such as javascript code in a user's browser needs to contact a WCF service running in SaaSGrid using REST, an ASMX passthrough method can be used to expose REST endpoints.  SaaSGrid does not currently expose REST endpoints for deployed services - so the javascript client code cannot call the WCF service directly. This sample shows how to build an ASMX "facade" web service, call it from the client using the jQuery library, and return data from a WCF service back out through the ASMX endpoint.