[UI] Route info page: add "Create route like this for next day" button

[Tim]

Now this button only appears after route creation, but when looking on the existing route, I still should:
1. Remember flight number.
2. Remember flight day.
3. Change day, wait while new data will load (takes some time on 3G).
4. Enter flight number manually - it's hard to do from mobile device.

Please, add button "Create route like this for next day" to the Route Info page.

This button should create "Open new route" page with:
1. Same flight number
2. Next day