No bug, Automated blocklist update from host bld-centos6-hp-008 - a=blocklist-update
No bug, Automated HSTS preload list update from host bld-linux64-ec2-170 - a=hsts-update
Update build for libvpx 1.2.0
Bug 763495 - Update libvpx source to 1.2.0. r=cpearce,glandium

This updates our in-tree copy of libvpx to match the 1.2.0 git
tag. All but one of the patches we were carrying are in this
upstream version. Our update.sh script should copy the new
files needed but will not remove the old ones for you.

Runtime cpu detection was rewritten upstream. We now generate
per-platform headers for this and include the correct one from
a vpx_rtcd.h wrapper like we were already doing for vpx_config.h

This revision includes improved assembly optimizations and should
be faster on all platforms.

There's an experimental script to generate the update script.

Based on work by Jan Gerber.
Bug 918550 - Update libvpx build for libvpx 1.3.0

replace update.sh with update.py
update.py can update the build system to a given commit id

 - checkout out upstream git
 - create platform dependend config files
 - add/remove changed libvpx files
 - update moz.build
Bug 918550 - Update libvpx to 1.3.0

Until 1.3.0 is released, use the git branch forest.

This patch is based on:

    4fbc1210ed81705b14f00f02c4508a0c413b04dc