change Fullname to Username

[hipp...@googlemail.com]

Hello together... First of all i want to thank you for this great extensions. Perfectly useful and well done. I just have one issue: I want to change the name view of the issue author and commentators. First one was no big deal, but the comments are tricky. No matter what changes i make always the full name will be posted with a comment. What to do to just show the username instead of the full name besides the comments...? Thanks in advance.