Linux 4.13 rc4

So rc3 was smaller than usual, and now rc4 is a bit bigger than usual.However, it's not outrageously so, and the reason for it all is fairlyclear: the networking pull just missed rc3, so it's all in rc4instead. That, along with the media pull, accounts for the bulk of thechanges (the networking side has more commits, while the media sidehas more lines changed due largely to some SVG work in thedocumentation).In fact, the media changes to the SVG files are so dominating that thediffs for this rc are 90% in Documentation/media. That's partlybecause everything else is really pretty small. So there may be a fewmore commits than usual, but they really are not all that big andscary.Aside from the media and networking changes, there's some amdgpuupdates, some scai styff, an ext4 update and some architectureupdates. And misc noise. The appended shortlog gives a good condensedflavor of the changes.Anyway, nothing really stands out, and while I really hope that we'llsee things calm down further, everything looks pretty much on trackfor a normal release.So go test things out. By now it should really be pretty safe.               Linus