fixed bug with new version of php and CI

cp/system/core/Common.php

@@ -253,8 +253,9 @@ if ( ! function_exists('get_config'))
 				}
 			}
 		}
-
-		return $_config[0] =& $config;
+		
+		$_config[0] =& $config;
+		return $_config[0];
 	}
 }
 
@@ -561,4 +562,4 @@ if ( ! function_exists('html_escape'))
 }
 
 /* End of file Common.php */
-/* Location: ./system/core/Common.php */
+/* Location: ./system/core/Common.php */
\ No newline at end of file