Merge pull request #1 from ctrucza/master

Pull from main, merge changes.
Preparatory refactoring (extracted a method)
Added the username in the ViewBag, used it.

The username is now added on the ViewBag upon each web request  - this
is done in the overriding "OnActionExecuting" etc.
Merge pull request #5 from andreib90/issue/1

Fixes #1