(bug 47325) Rights configuration on es.wikivoyage

This commit does three things:
* (1) It adds the 'autopatrol' right to the 'rollbacker' and
'patroller' user groups per community request;
* (2) It adds the possibility to add and remove users from the
'confirmed' group for bureaucrats per request;
* (3) It cleans some comments to make the text a bit more
readable (my own inspiration :).

Bug: 47325
Change-Id: I23b32e909019805d830b43922c14ba42ec9c2b69