Oprava unsigned poli

src/warden-server/doc/warden20to21.patch

 ALTER TABLE  `clients` CHANGE  `registered`  `registered` TIMESTAMP NOT NULL DEFAULT  '0000-00-00 00:00:00';
-ALTER TABLE  `events` CHANGE  `detected`  `detected` TIMESTAMP NOT NULL DEFAULT  '0000-00-00 00:00:00';
+
+ALTER TABLE  `events` 
+CHANGE  `detected`  `detected` TIMESTAMP NOT NULL DEFAULT  '0000-00-00 00:00:00',
+CHANGE  `target_port`  `target_port` INT( 2 ) UNSIGNED DEFAULT NULL ,
+CHANGE  `attack_scale`  `attack_scale` INT( 4 ) UNSIGNED DEFAULT NULL ,
+CHANGE  `priority`  `priority` INT( 1 ) UNSIGNED DEFAULT NULL ,
+CHANGE  `timeout`  `timeout` INT( 2 ) UNSIGNED DEFAULT NULL;