Remove code duplication:
- There was addTrustFields() and handleGetTrust(). Combine what those functions did into addTrustFields(). "addTrustFields()" is the better name because its not only used for handling the "GetTrust" message.
JavaDoc:
- Don't document obsolete fields since they will be removed.
Fix GetTrust throwing an exception if no such trust exists:
- Instead let addTrustFields() handle that condition gracefully