Fixes #3641 Thanks for the patch mihui!

git-svn-id: http://dev.piwik.org/svn/trunk@7710 59fd770c-687e-43c8-a1e3-f5a4ff64c105
Refs #3637 adding new feature thx EricCG for patch + suggestion!
; By default when user logs out he is redirected to Piwik "homepage" usually the Login form.
           ; Uncomment the next line to set a URL to redirect the user to after he logs out of Piwik.
           ; login_logout_url = http://...


git-svn-id: http://dev.piwik.org/svn/trunk@7711 59fd770c-687e-43c8-a1e3-f5a4ff64c105
Refs #2465 Try fixing notice - does it fix it @halfdan?

git-svn-id: http://dev.piwik.org/svn/trunk@7712 59fd770c-687e-43c8-a1e3-f5a4ff64c105