Upgraded the qemu-kvm, seabios Portage packages, and python.eclass.

Upgraded app-emulation/qemu-kvm to version 0.15.1-r1 on amd64
Upgraded sys-apps/seabios to version 1.6.3 on amd64
Upgraded the python.eclass to upstream version.

These packages will not be active until they are marked as stable
by a commit in chromiumos-overlay.  The python.eclass change, however,
is active immediately and that is what the testing is for.

BUG=chromium-os:22309
TEST=Trybot runs:
x86-generic-pre-flight-queue
arm-generic-full
x86-generic-full
chromiumos-sdk

Change-Id: Ied4e1a31512686185e68babd479a45b96140d432
Reviewed-on: https://gerrit.chromium.org/gerrit/11133
Reviewed-by: David James <davidjames@chromium.org>
Tested-by: Matt Tennant <mtennant@chromium.org>
Commit-Ready: Matt Tennant <mtennant@chromium.org>
5 files changed