Change webAlert() to webAlertAndQuit() and mode webAlert() to deprecated.functions.inc.php

Change webAlert() to webAlertAndQuit() and mode webAlert() to
deprecated.functions.inc.php

https://github.com/modxcms/evolution/commit/377616ff7f2dae3b42cc958549fc9e99772c0c48#diff-b91fad0266a33c1d4d87dff876939692
Style fix