Kernel prepatch 3.7-rc7

Linus has released the 3.7-rc7 kernel
prepatch. "A week ago, I had even considered skipping -rc7 entirely
as things had been so calm, but decided that there was little reason to
hurry the release. And oh, how sadly right I was." This could
prove to be the last one, though, if the next week of testing goes well.