Feedback box uses author name

[fniephaus]

I don't know why, but the author name is pre-filled in the feedback box. Instead, it should be the GitHub user name, so that the corresponding user is notified and subscribed to the issue. Maybe, there needs to be another dialog for entering the Github user name once, unless this is already needed for something.

[j4yk]

If you have a image that shows the unwanted behavior, please debug SquitBrowser>>detectGitHubUsernameIfNone:. If no author was supplied to the SquitFeedback object from the outside, it will start out with the default GitStamp, which is the default Git author. For me it works, though.