Update Autocomplete plugin for reusable notice forms in 1.0.x. It's fun!

Now pulls the fetch API URL from a dedicated <span> with a data attribute ('data-url', should pass HTML 5 validators for our future overlords)

plugins/Autocomplete/AutocompletePlugin.php

@@ -51,6 +51,8 @@ class AutocompletePlugin extends Plugin
 
     function onEndShowScripts($action){
         if (common_logged_in()) {
+            $action->element('span', array('id' => 'autocomplete-api',
+                                           'data-url' => common_local_url('autocomplete')));
             $action->script($this->path('jquery-autocomplete/jquery.autocomplete.pack.js'));
             $action->script($this->path('Autocomplete.js'));
         }