added missing SystemObjects Api ns prefix

SE/se-lib/Api/WfsNs.php

@@ -32,6 +32,7 @@ class Api_WfsNs {
 		$listNs["{$baseNsUri}"] = 'p5';
 		$listNs["{$baseNsUri}/default_db"] = 'default_db';
 		$listNs["{$baseNsUri}/default_objects"] = 'default_objects';
+		$listNs["{$baseNsUri}/SystemObjects"] = 'SystemObjects';
 		$listNs["{$baseNsUri}/objects"] = 'p5_objects';// TODO: to remove
 		return $listNs;
 	}
@@ -45,6 +46,7 @@ class Api_WfsNs {
 			if ('p5_default_db' == $nsPrefix) return V::get('default_db', null, $nsMap);
 			if ('objects' == $nsPrefix) return V::get('p5_objects', null, $nsMap);
 			if ('default_db__x3A__' == substr($nsPrefix, 0, 17)) return $nsMap['default_db'] . "/" . substr($nsPrefix, 17);
+			if ('SystemObjects__x3A__' == substr($nsPrefix, 0, strlen('SystemObjects__x3A__'))) return $nsMap['SystemObjects'] . "/" . substr($nsPrefix, strlen('SystemObjects__x3A__'));
 		}
 		return $nsUri;
 	}