Remove legacy api usage from comment.php
Remove legacy api usage from comment.php

dreibh/planetlab-lxc-plcapi,dreibh/planetlab-lxc-plcapi,gaetan-be/phpxmlrpc,howaichun/phpxmlrpc,gaetan-be/phpxmlrpc,howaichun/phpxmlrpc,gaetan-be/phpxmlrpc,gaetan-be/phpxmlrpc,howaichun/phpxmlrpc,howaichun/phpxmlrpc,dreibh/planetlab-lxc-plcapi,dreibh/planetlab-lxc-plcapi