REMOTE_ADDR not defined for CLI mode

[abfan1127]

In system/core/Input.php, it stores the IP address via $_SERVER['REMOTE_ADDR'].
However, it may not exist in CLI environments. A simple array key test over comes this.

line 351:

$this->ip_address = array_key_exists('REMOTE_ADDR',$_SERVER) ? $_SERVER['REMOTE_ADDR'] : '0.0.0.0';

[narfbg]

#1890.