[TYPO3-core] RFC Feature #11313: Add more information to logoff() method in user authentication

[Oliver Hader]

This is an SVN patch request.

Type: Feature

Bugtracker references:
http://bugs.typo3.org/view.php?id=11313

Branch: Trunk

Problem:
The TYPO3 user authentication (t3lib_userAuth) has a method logoff()
that is called at several places but has no information what kind of
"logoff" happens:
* regular logoff, since user requested it (status=logout)
* automatic logoff from old session when a new frontend user logs in
* automatic logoff if session of logged in frontend user expired or no
frontend user is logged in at all

Solution:
Add new constants that reflect the mentioned events and use them on
calling the logoff() method, e.g. "logoff(self::LOGOFF_OnUserLogin)".

olly
-- 
Oliver Hader
TYPO3 Release Manager 4.3