Remove reference to 2.4.2.Final from guide.
Remove reference to 2.4.2.Final from guide.

errai/errai-tutorial,freelance-factory/ticketek,divd/errai-tutorial,freelance-factory/errai-prototype,divd/errai-tutorial,freelance-factory/errai-prototype,WISDelft/ExpertiseFindingPrototype,freelance-factory/user-complaint-form,mbarkley/errai-tutorial,freelance-factory/ticketek,freelance-factory/user-complaint-form,WISDelft/ExpertiseFindingPrototype,errai/errai-tutorial,mbarkley/errai-tutorial