Automatic translations update from Transifex
https://www.transifex.com/projects/p/vatsinator/
Added airline logo display
Added Airline class
Added AirlineManager class
Airlines data changes
AirlineManager class removed
Airline class moved to db
Fix Airline class threads
Changelog update
Merge branch 'develop' into misc/map-engine-review
Merge branch 'misc/map-engine-review' into feature/contiguous-data-update