This adds termination support to the ec2 module
updating edx_sandbox, creating edx_sandbox_jenkins.yml
setting private key for jenkins
removing commented out line
changing the way the terminate options is used
adding xserver/xqueue roles to edx_sandbox_jenkins
move handlers to deploy.yml
removing spaces because it messes up syntax highlighting in vim
removing edx-update.sh
replacing git_ssh with ssh_key_forward