Conflict between Consumable.vehicles and Vehicle.consumables resolved by
making the Consumable.vehicles a read only relationship since we add
consumables only to vehicles. Consumable.vehicles is used in the admin
view to check if a consumable can be deleted safely.
This commit includes:
* sql conversion script
* fixes for the column type for lat and lng fields
* removes prints / console logs
* unneccessary comments
* if no home data is available, we center to germany
* hide non working brand logos
* on closed stations the word "closed" is printed instead of outdated
price
* updates on filling stations is done in chunks of max 10
* configuration separates between development and testing