2.5.0 - Trip management, UI refresh

New features:

- PRO only - trip management (GPS tracking, cost, reimbursement, etc...)

- UI refresh with new icons, better tablet support, etc...

- New stats (fuel quantity)

- New option in settings/display to choose 12/24h time format

- Added Ethanol as car fuel type

- Events notifications will now display also the description

- Added Serbian locales, updated Portuguese locale

- New currencies

- After insert/update of refuel shows fuel efficiency in popup

Bug fix:

- Import of dual fuel cars could fail if 2 refuels with same date

- Many small fixes