add the other tools needed to test the android app

We don't want to use a file, we have an ssh agent

Allow sandboxes to be created using env tokens rather than boto config

Sandboxes don't run rabbit behind an ELB

Pull down ec2 and route53 from ansible 2 for assume role support

Upgrade tools jenkins and plugins

Revert "SOL-2037: Make sure ssh private keys are not leaked into the jenkins job logs"

If you have COMMON_ENABLE_DATADOG on, jenkins_master will die if you
don't run the datadog role first.  New Relic can safely be last.

Remove plugins I don't believe are in use, or planned to be in use.
We can add back as needed.

job-dsl was installed manually previously, now included in the list.

Switch to a newer Jenkins, stable (LTS) version.

These are dependencies of other modules we need

Discovered by reading the startup logs (some things had never worked).

more missing plugins and upgrades

SOL-2037: Make sure ssh private keys are not leaked into the jenkins job logs

https://github.com/boto/boto/commit/2e771c17678e33ecabaff6b78c7bf53e41a95ce7

It supports assumed roles (using AWS STS).
1.9.3 only supports standard credentials.

If you had a sandbox behind an ELB, this would take the whole sandbox
in/out of the ELB during an ansible run?

add role for configuring android worker

SOL-2032: Theming broken for "From Scratch" AMI builds

Also, this file/path won't exist later on sandboxes which also
source this file when running /edx/bin/update

Clean up bootstrap script

Switch back to Ruby 1.9.3

Revert "Update sandbox ami"

Revert "Update devstack base box" 

Removing dangling reference