Updates to configure_new_server.sh:
* Added logic to start service so this script can now be run if the service is down at the start.
* The 'security' configurable is now set to 4 (was unset).
* Enhanced error handling.
* Added logic to more fully initialize a new/empty server:
- Create perforce P4USER (if there is only a single user on the system).
- Create Automation group.
- Initialize basic Protections.
Updates to configure_new_server.bat:
* Added logic to start service so this script can now be run if the service is down at the start.
* The 'security' configurable is now set to 4 (was unset).
In mkdirs.cfg, change the default password to one good enough to be used with `security=4`.