Set Railo Password on Install
For purposes of being secure by default, we need to set the password of the railo administrators at the time of installation. Preferably this should be done using a non-web-based method (like using the admin API) because it could potentially lead to problems in various install scenarios. Instead, a script or installer function should be used so that even if the installation fails to happen correctly, this independent piece could still occur and update the passwords.