Implement new api_version() check. Bump plugin version to 1.0.

init.php

@@ -7,13 +7,18 @@ class Af_Feedmod extends Plugin implements IHandler
     function about()
     {
         return array(
-            0.9,   // version
+            1.0,   // version
             'Replace feed contents by contents from the linked page',   // description
             'mbirth',   // author
             false,   // is_system
         );
     }
 
+    function api_version()
+    {
+        return 2;
+    }
+
     function init($host)
     {
         $this->host = $host;