Create suggest_no_double_entries

Fixed:
 $array_double = array();
	while ( $line = fgets ( $in, 1024 ) )
	{
		list ( $keyword, $freq ) = split ( " ", trim ( $line ) );
		if (in_array($keyword,$array_double, true)){
			break 1;
		}
		array_push($array_double,$keyword);