The Messages API
Registered by
Wilson
Defines the text contract between the client and server for inline messages
Whiteboard
Needs to communicate:
* Success / Failure - High level indicated by the presence of an error message contained within
* List of messages in order of creation
* A per-message 'type' that indicates the type of message - error/validator/
<response >
< messages priority=
<message priority="">
</message>
(?)