Installation Wizard: Fix endless loop trying to request .../images/branding/DNN_logo.png when IIS "Anonymous Authentication Identity" has no read permission on file system
Merge remote-tracking branch 'upstream/development' into development
Delete (old) protected version if existing before protecting file, i.e. adding protection extension
Merge pull request #122 from janjonas/development

Installation Wizard: Fix endless loop trying to request .../images/brand...