Update mediator to use the new Core_Daemon::log definition and expose the error() method to workers
Update mediator to use the new Core_Daemon::log definition and expose the error() method to workers

gregtampa/PHP-Daemon,MartinReidy/PHP-Daemon,zazoomauro/PHP-Daemon,zazoomauro/PHP-Daemon,theintz/PHP-Daemon,gregtampa/PHP-Daemon,MartinReidy/PHP-Daemon