Update XEP-0280 supported version to 1.0.1 (#87)

The only relevant change since 0.13.2 and 1.0.1 was
  xsf/xeps@64f87e1
and that was already implemented that way

Author: badlop

xmpp.doap

@@ -479,7 +479,7 @@
     <implements>
       <xmpp:SupportedXep>
         <xmpp:xep rdf:resource="https://xmpp.org/extensions/xep-0280.html"/>
-        <xmpp:version>0.13.2</xmpp:version>
+        <xmpp:version>1.0.1</xmpp:version>
         <xmpp:since></xmpp:since>
         <xmpp:status></xmpp:status>
         <xmpp:note></xmpp:note>