* Rewrote commandLine.inc to be a simple wrapper around Maintenance.php

* Rewrote commandLine.inc to be a simple wrapper around Maintenance.php
* Don't show help if the first argument is "help", only show it if there is a "--help" option. That makes more sense for the scripts that accept filenames as parameters and is the backwards-compatible behaviour.
* Renamed spawnChild() to runChild(), spawn implies creating a new process to run simultaneously with the old one
* Removed error_reporting override, that's a matter for local policy
* s/private/protected