2.4 invades the background downloader

As Adam pointed out earlier this afternoon, the changes for patch 2.4 are starting to be less and less dramatic, which may indicate that the patch is nearing completion. Here's another such indication: parts of the patch (251 MB for me) are now being sent out to the background downloader. This means that some of the patch data is finalized, and we can get those parts of the patch now instead of