KRACOEUS-7695 : budget income summary attempt 1

I have added a DTO class ( coeus-impl/src/main/java/org/kuali/coeus/common/budget/framework/income/BudgetPeriodIncomeTotal.java ) , a  p:methodToCall="showBudgetPeriodIncomeSummary" in the xml page and the java method showBudgetPeriodIncomeSummary in the controller. The showBudgetPeriodIncomeSummary is being called, but the page won't display the table. Please take a look, tell me what I  need to change. Thanks! 
The property name should be something related to the model. Once you move the method on budget to the form you can just specify that property which is basically is, but with a lower case b.