When in none auth mode, registered users don't exist; hence the setting
makes the game impossible to join.

Normally the setting would be greyed out when the user is unregistered,
but commit 475c54bf introduced a new edge case where the stored setting
would apply to the field even if the user is unregistered, making the
setting possible to apply in no-reg mode. Regardless, any client could
have done this, not just the default cockatrice.

The server side fix should prevent all issues in the future.

Moved the RegOnlyRequirement functions out of the Database interface into the proper Server block of code.

Changed the default value for the client keep alive variable back to 1 (since that is what the setting is if the value is not found in the configuration ini file).

Will follow the following rules

+ send a message initially
+ send a message every 20 mins
+ send a message every min when time <= 5

Updated client popup

Updated client to close any previous popups and bring up a new one.

NEEDS TO BE TESTED

added missing include

Added delete on close

and add a method to guess the path of servatrice.ini

added mutex for RNG, moved game command implementation from S_PH to S_Player in preparation for forwarding of game commands via tunneling interface