Changelog: [list] [*]Added a sound menu with adjustable volumes. [*]Minor adjustments: [list] [*]Game saves after completing a scenario, to avoid losing progression in case the autosave on exit fails. [*]Planes won't backtrack anymore after landing at London City, because planes can use a taxiway in real life. [*]For custom airports, the wake turbulence minima can be adjusted. See the 'wake' property in the [airspace] section of example.txt.[/list][*]Bug fix for departures that did not request further climb even when they were flying at a too low altitude.[/list]