Add translator documentation.

L10n updates.
Whitespace updates.

lib/groupsnav.php

@@ -84,8 +84,10 @@ class GroupsNav extends MoreMenu
     function seeAllItem() {
         return array('usergroups',
                      array('nickname' => $this->user->nickname),
+                     // TRANS: Link description for seeing all groups.
                      _('See all'),
-                     _('See all groups you belong to'));
+                     // TRANS: Link title for seeing all groups.
+                     _('See all groups you belong to.'));
     }
 
 }

lib/listsnav.php

@@ -84,7 +84,9 @@ class ListsNav extends MoreMenu
     {
         return array('peopletagsbyuser',
                      array('nickname' => $this->profile->nickname),
+                     // TRANS: Link description for seeing all lists.
                      _('See all'),
-                     _('See all lists you have created'));
+                     // TRANS: Link title for seeing all lists.
+                     _('See all lists you have created.'));
     }
 }