News service flow controller tutorials

- Navigation using the flow controller Part 1 (Pitch 1.0) >>
  Creating a simple application flow and adding context views to a News service

- Adding application call reference Part 2 (Pitch 1.0) >>
  Adding the an application call as pre process to the home context

- Adding navigation option Part 3 (Pitch 1.0)>>
  Adding a navigation option to the home context