Lesson42-43 -- "Work through JdbcTemplate + Transactional management"

1) Adding RowMappers for DB model
2) Adding example of pagination to `Departments` -> add class `Page` + add some styles into `styles.css` + add pages link in `Departments.jsp`. Add method `goPage` into `DepartmentsServlet`.
3) Adding @Transactional annotations into `Service`-classes
4) Add some jQuery features into `PhoneNumbers.jsp` like smooth scrolling ^_^
5) A lot of `code style` edits

To be continued...