Patch content

UPDATE: performance improvements
FIX: Tweets were incorrectly saved
FIX: When an internal soccer match happens (between two teams of the same city), an error occurred
FIX: Some buildings windows were lighted up right after their construction (even with no power)
FIX: An error occurred while trying to get the value of the function : get_population_happiness_count
FIX: Signatures of chapter 04 were not saved when the mayor quit the city

Known issues

When shadows are on, big cities slow down the game