Xoom 3.7.3

This is a patch release.

It introduces a new standard query called Structure, which includes Scheme and Object Reference setting. This query is very useful for automated analysis of the compatibility of different environments and the capability of transferring data between them.
Xoom Processor now implements a new custom command called GetCustomQuery. The command takes a skeleton structure as its input, and fills in the details using Xoom, exactly as though the skeleton were the body of a named query. This means that ad hoc queries can be used with Xoom without the need to define corresponding named queries.