Merge pull request #88 from jarmokortetjarvi/backend

Add cost-benefit calculation functionality
Merge pull request #89 from jarmokortetjarvi/startup

Update template
Merge pull request #90 from jarmokortetjarvi/backend

Add translations
Merge branch 'master' of https://github.com/jarmokortetjarvi/futural.git into backend
Fix the model
Fix the model
Modify the menu
Merge pull request #77 from jarmokortetjarvi/backend

Modify the menu