compiler services API

To make the VAStGoodies client work right from the VA image, I needed a service API in addition to the Seaside application that is running on Requirements for that service include “get all available configuration map names” and “get a download url for a particular version of a configuration map”. Instead of implementing a full-blown end-to-end SOAP based Webservice, I decided to implement a much leaner RPC-style design that simply returns Smalltalk expressions.