XEP-0107 update

[Neustradamus]

About XEP-0107:

• https://xmpp.org/extensions/xep-0107.html
• https://xmpp.org/extensions/xep-0107.html#revision-history-v1.2.1
• https://github.com/xsf/xeps/commits/master/xep-0107.xml

Commit: xsf/xeps@5e411ec

There is a change:
<ecstatic xmlns='http://ik.nu/ralphm'/> by <ecstatic xmlns='https://example.org/'/>