Fix(soap): Handle downed game server gracefully

[dantav]

Get POD errors when a subscriber or anyone else tries logging in while game server is down. Errors also on character view. User needs messaging that game server is under maintenance.

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[nicoaravena]

This is fixed in #86. Can you please check it @dantav?

[dantav]

I was thinking more of the lines of either some try/catch with api calls or something simple like this.

    public static function checkConnection()
    {
        $inst = static::I();
        $soap = $inst->getServerSoap();
        if($soap->serverInfo() == "Could not connect to host") return false;
        else return true;
    }

Then for pages that use the service calls I would do this first.

if(!ACoreServices::checkConnection())
{
    echo "<br /><h4 style='text-align: center'>Game server is under maintenance, please check back later</h4>";
}
else { 
..

There is probably a cleaner way of doing this. But the point is we need to gate service calls to check if game server is up.

[nicoaravena]

Probably is a good thing to add as an extra warning, but not as a raising error, because will cause to block access to the wp-admin view.

Feel free to propose a PR, we will be happy to get more help.