Update schema

lib/database/upgradedatabase_5_6

@@ -3,8 +3,10 @@
 upgradedatabase_5_6() {
 	echo "Upgrading database to version 6... (backup is $database.bak_v5)"
 	cp "$database" "$database.bak_v5"
-	echo 'DROP TRIGGER force_destination_update_on_tag_update;' >&3
 	echo '
+		ALTER TABLE tags ADD COLUMN replaygain_alb FLOAT;
+		ALTER TABLE tags ADD COLUMN replaygain_trk FLOAT;
+		DROP TRIGGER force_destination_update_on_tag_update;
 		CREATE TRIGGER IF NOT EXISTS force_destination_update_on_tag_update
 		AFTER UPDATE OF
 			genre,