adding HTTP_X_FORWARDED_FOR header to Profiler
diff --git a/system/libraries/Profiler.php b/system/libraries/Profiler.php
index ebadf86..bf20f17 100644
--- a/system/libraries/Profiler.php
+++ b/system/libraries/Profiler.php
@@ -380,7 +380,7 @@
 
 		$output .= "\n\n<table cellpadding='4' cellspacing='1' border='0' width='100%'>\n";
 
-		foreach(array('HTTP_ACCEPT', 'HTTP_USER_AGENT', 'HTTP_CONNECTION', 'SERVER_PORT', 'SERVER_NAME', 'REMOTE_ADDR', 'SERVER_SOFTWARE', 'HTTP_ACCEPT_LANGUAGE', 'SCRIPT_NAME', 'REQUEST_METHOD',' HTTP_HOST', 'REMOTE_HOST', 'CONTENT_TYPE', 'SERVER_PROTOCOL', 'QUERY_STRING', 'HTTP_ACCEPT_ENCODING') as $header)
+		foreach(array('HTTP_ACCEPT', 'HTTP_USER_AGENT', 'HTTP_CONNECTION', 'SERVER_PORT', 'SERVER_NAME', 'REMOTE_ADDR', 'SERVER_SOFTWARE', 'HTTP_ACCEPT_LANGUAGE', 'SCRIPT_NAME', 'REQUEST_METHOD',' HTTP_HOST', 'REMOTE_HOST', 'CONTENT_TYPE', 'SERVER_PROTOCOL', 'QUERY_STRING', 'HTTP_ACCEPT_ENCODING', 'HTTP_X_FORWARDED_FOR') as $header)
 		{
 			$val = (isset($_SERVER[$header])) ? $_SERVER[$header] : '';
 			$output .= "<tr><td valign='top' style='color:#900;background-color:#ddd;'>".$header."&nbsp;&nbsp;</td><td style='color:#000;background-color:#ddd;'>".$val."</td></tr>\n";