Output log doesn't autoscroll by default

I'm not sure if this counts as a bug or an idea, but I feel that this is so minor that it doesn't really matter.

As for the issue itself, it's pretty self-explanitory. autoscroll is implemented in the launcher's output log, but it doesn't do it by default. Instead, you need to scroll manually all the way down for it to happen. I believe that this should be at the very least an option, perhaps enabled by default.