Add legacy icon support

plugins/unl_avatars/manifest.xml

+<?xml version="1.0" encoding="UTF-8" ?>
+<plugin_manifest xmlns="http://www.elgg.org/plugin_manifest/1.8">
+        <name>UNL Avatars</name>
+        <author>UNL</author>
+        <version>1.0</version>
+        <description>Adds legacy and public Avatar (icon) support</description>
+        <requires>
+                <type>elgg_release</type>
+                <version>2.0</version>
+        </requires>
+</plugin_manifest>

plugins/unl_avatars/start.php

+<?php
+
+function unl_avatars_init() {
+    elgg_register_page_handler('pg', 'unl_avatars_pg_handler');
+}
+
+// Fire up the plugin initialization using the elgg handler
+elgg_register_event_handler('init','system','unl_avatars_init');
+
+function unl_avatars_pg_handler($segments) {
+    if ('icon' != $segments[0]) {
+        return false;
+    }
+    
+    if (!isset($segments[1], $segments[2])) {
+        return false;
+    }
+    
+    $username = $segments[1];
+    $size = $segments[2];
+    
+    if (!$user = get_user_by_username($username)) {
+        return false;
+    }
+    
+    //Forward to the new guy
+    forward('mod/profile/icondirect.php?guid='.$user->guid.'&size='.$size);
+}