[Standards] UPDATED: XEP-0491 (WebXDC)

Version 0.1.2 of XEP-0491 (WebXDC) has been released. Abstract: This document defines an XMPP protocol extension to communicate WebXDC widgets and their state updates. Changelog: * Suggest what to use for selfAddr * Add acknowledgements (spw) URL: https://xmpp.org/extensions/xep-0491.html Note: The information in the XEP list at https://xmpp.org/extensions/ is updated by a separate automated process and may be stale at the time this email is sent. The XEP documents linked herein are up-to- date.