Reorder smack-extensions providers xml

Fix rfc number

smack-legacy/src/main/resources/org.jivesoftware.smack.legacy/legacy.providers

@@ -2,18 +2,18 @@
 <!-- Providers file for legacy Smack extensions -->
 <smackProviders> 
 
-    <!-- Roster Exchange -->
-    <extensionProvider>
-        <elementName>x</elementName>
-        <namespace>jabber:x:roster</namespace>
-        <className>org.jivesoftware.smackx.xroster.provider.RosterExchangeProvider</className>
-    </extensionProvider>
-
-    <!-- Message Events -->
+    <!-- XEP-0022: Message Events -->
     <extensionProvider>
         <elementName>x</elementName>
         <namespace>jabber:x:event</namespace>
         <className>org.jivesoftware.smackx.xevent.provider.MessageEventProvider</className>
     </extensionProvider>
 
+    <!-- XEP-0093: Roster Item Exchange -->
+    <extensionProvider>
+        <elementName>x</elementName>
+        <namespace>jabber:x:roster</namespace>
+        <className>org.jivesoftware.smackx.xroster.provider.RosterExchangeProvider</className>
+    </extensionProvider>
+
 </smackProviders>

smack-legacy/src/main/resources/org.jivesoftware.smack.legacy/workgroup.providers

@@ -1,7 +1,8 @@
 <?xml version="1.0"?> 
 <!-- Providers for workgroup extensions -->
-<smackProviders> 
-    <!-- Fastpath providers -->
+<smackProviders>
+
+    <!-- XEP-0142: Workgroup Queues -->
     <iqProvider>
         <elementName>offer</elementName>
         <namespace>http://jabber.org/protocol/workgroup</namespace>
@@ -117,8 +118,8 @@
         <className>org.jivesoftware.smackx.workgroup.ext.history.ChatMetadata$Provider</className>
     </iqProvider>
 <!--
-	
-	org.jivesoftware.smackx.workgroup.site is missing ... 
+
+    org.jivesoftware.smackx.workgroup.site is missing ...
 
     <iqProvider>
         <elementName>site-user</elementName>