kvm-3.17-1

few days.

MIPS and s390 have little going on this release; just bugfixes, some
small, some larger.

The highlights for x86 are nested VMX improvements (Jan Kiszka), optimizations
for old processor (up to Nehalem, by me and Bandan Das), and a lot of x86
emulator bugfixes (Nadav Amit).

Stephen Rothwell reported a trivial conflict with the tracing branch.