Created local U2 in BankController for convenience.
Added doExport method to StatementController
Added doExport method to BankController which calls StatementController.doExport()
Added doExport method to StatementController
Added doExport method to BankController which calls StatementController.doExport()
Added SearchCriteria class
Added SearchWindow class
Added WindowEvent handler to BankController which will invoke a new getLedger task