Kernel prepatch 4.5-rc1

Linus has released the 4.5-rc1 prepatch andclosed the merge window for this development cycle. "It's a fairlynormal release - neither unusually big or unusually small. The statisticslook fairly normal too, with drivers being a bit over 70% of the bulk (thebig driver areas being gpu, networking, sound, staging, fbdev, but its allover)."