L7R was responding 'I am alive' even when the host was blocked, fixes #1507

git-svn-id: https://svn.qindel.com/repos/main/projects/qindel/QVD/src/trunk@22870 4046b530-fbad-4e16-af16-ee11f0b55167
use normalized_login in authentication plugins on the after_authenticate_basic stage

git-svn-id: https://svn.qindel.com/repos/main/projects/qindel/QVD/src/trunk@22877 4046b530-fbad-4e16-af16-ee11f0b55167