* Add serialization version to GameInfo
* Add handling of incompatible saves due to a dfiferent save version
* Fix compilation?
* Fix ios compilation
* Refactor: Make it clearer that GameInfo serialization version is only supposed to be incremented when it's guaranteed to cause issues & rename to compatibility version
* Update initial version
* Update initial version
* Fix merge mistake
* Callback to exit the game by 'Back' button
* Prompt dialog for the game exit
* Additional strings for translations are generated
* Do not show exit prompt dialog twice