Drop generics from ViewDialog.

Add new ctor to ContainerDataSource.
Update ContainerDataSource to Vaadin 7
Add new class for simple dialogs
Use LocaleContextHolder to get locale in VaadinViews.

- Fix expandRation property  in Vaadin table column
Improve Vaadin PageableTable bean definition.
Deprecate PersistentService interface in favor of Dao.
ServiceBeanDefinitionParser will register service wrapper only if service-class is defined.