$title: title of page being edited
&$msg: localization message name, overridable. Default is 'editpage-tos-summary'
-'EditSectionLink': Do not use, use DoEditSectionLink instead.
-$skin: Skin rendering the UI
-$title: Title being linked to
-$section: Section to link to
-$link: Default link
-&$result: Result (alter this to override the generated links)
-$lang: The language code to use for the link in the wfMessage function
-
'EmailConfirmed': When checking that the user's email address is "confirmed".
$user: User being checked
$confirmed: Whether or not the email address is confirmed
$ip: User's IP address
&$blocked: Whether the user is blocked, to be modified by the hook
+'UserIsEveryoneAllowed': Check if all users are allowed some user right; return
+false if a UserGetRights hook might remove the named right.
+$right: The user right being checked
+
'UserLoadAfterLoadFromSession': Called to authenticate users on external or
environmental means; occurs after session is loaded.
$user: user object being loaded