[jsr-314-open] Adding a description field to the JavaScript event payload

I'd like to propose that we add a freeform text description field to the JavaScript event and error payload. This would allow for user readable descriptions to go along with errors like the infamous "MalformedXML" error. I think this could fit into an errata, since: 1) It's got no backward incompatibility impact. 2) It's a single line in the spec. 3) It's (almost) trivial to implement. and most importantly: 4) We really should have had this in there in the first place, and it's omission was really more of an oversight than a deliberate choice. Thoughts? I've opened up spec issue 570 to track this: https://javaserverfaces-spec-public.dev.java.net/issues/show_bug.cgi?id=570 And yes, I made it a P1. Jim