API: new methods:
game.delete.leaderboards.reset method now requires user's password.
Fixed and updated displaying of the Welcome modal on the Home page.
Fixed a recent bug with users weren't able to apply some settings.
Fixed the server was responding with the 400 HTTP code even if the request was successful when a user was applying some settings.
The server now responses with the 204 HTTP code instead of 200 on successful requests when a user applies settings.