isPerson did not exist for Ostatus_profile

plugins/OStatus/OStatusPlugin.php

@@ -285,6 +285,7 @@ class OStatusPlugin extends Plugin
     {
         $matches = array();
 
+        $wmatches = array();
         // Webfinger matches: @user@example.com or even @user--one.george_orwell@1984.biz
         if (preg_match_all('!(?:^|\s+)@((?:\w+[\w\-\_\.]?)*(?:[\w\-\_\.]*\w+)@(?:\w+\-?\w+\.)*\w+(?:\w+\-\w+)*\.\w+)!',
                        $text,

plugins/OStatus/classes/Ostatus_profile.php

@@ -193,6 +193,11 @@ class Ostatus_profile extends Managed_DataObject
         }
     }
 
+    public function isPerson()
+    {
+        return $this->localProfile()->isPerson();
+    }
+
     /**
      * @return boolean true if this is a remote peopletag
      */