VOLDEV-2 Add user right for being allowed to add article comments

[VOLDEV-2](https://wikia-inc.atlassian.net/browse/VOLDEV-2)
@Grunny @michalroszka 
This message is yet another one with a raw HTML link tag in it :(, so `escaped()` results in the link breaking. Can you switch the message to wikitext and link to user login that way and then use `->parse()`?