Build #43

Parameters
TRELLO_URL
The resulting AMI will be tagged with the specified Trello card and a comment will be added to the card.
ORIGIN_FORK_ID
The name of the Github user or organization to use for the fork of the Origin repo.
ORIGIN_REPO
The name of the Origin repo.
ORIGIN_BRANCH
Branch to use for the Origin fork. This should be the branch of a PR that needs to be tested.
TARGET_ORIGIN_BRANCH
The target branch for merging ORIGIN_BRANCH into.
RUN_EXTENDED
Run the extended tests. Note that the AMI will be tagged as qe=ready even if these tests fail.