implemented swapping of project/task states

such that the state order is now
* pending
* open
* started
* complete
* cancelled

task/src/main/java/de/srsoftware/umbrella/task/SqliteDb.java

@@ -38,9 +38,11 @@ public class SqliteDb extends BaseDb implements TaskDb {
 			case 0:
 				createTaskTables();
 				createTasksUsersTable();
+			case 1:
+				swapStates(TABLE_TASKS);
 		}
 
-		return setCurrentVersion(1);
+		return setCurrentVersion(2);
 	}
 
 	private void createTaskTables() {