Unreviewed.

Unreviewed.

It turns out we need to use Ubuntu 10.04 to get the right image results
for chromium-linux. This patch updates our scripts to be compatible
with Ubuntu 10.04.

* EWSTools/cold-boot.sh:
    - fdisk doesn't have p and 1 as default commands in 10.04.
* EWSTools/start-queue.sh:
    - git doesn't understanding the -B argument in 10.04. We've been
      using this change locally on the EC2 bots for a while.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@121644 268f45cc-cd09-0410-ab3c-d52691b4dbfc