Added views to app

- added public folder with fonts and styles
- added views folder with stripped down basic views
- Gemfile: added haml and tilt
- app_spec: root route test only checks for ok status
- app:
	- user helper method returns nil instead of halt 404
  - added haml and flash gems and registered flash
  - added current_path? method
  - created /cadet and /cadet/:username routes
  - added deprecated route /api/v1