add message when logged in and try to get new pw, fixes #3970

git-svn-id: svn://develop.studip.de/studip/trunk@28413 c5b85792-5220-0410-ad23-ed5b6b8ad999
refs #3762
better way of hiding the <br>s

git-svn-id: svn://develop.studip.de/studip/trunk@28415 c5b85792-5220-0410-ad23-ed5b6b8ad999