OPS-1593 As an operator, I want sudo_user converted to become user in roles and plays, for compatibility with Ansible 2.x

This breaks when you add a new person, but a previous person removed a key.

Other than removing that user you have no recourse to add the new user.

We need a better warning mechanism for this, but we need to stop
failing.

adding httplib2 as a requirement

Handle the non-build-from-scratch case

app has replaced the word cluster with app in the create ami CD playbook

We only run the previous stanza if git and pip are missing.
So if you have an existing 14.04 image and cut a new one, you'll
still run into problems where ansible dies missing httplib2 and we
never install it without a scratch build.

adding ec2_instance_profile_name to launch instance CD

Default to ssd instead of standard storage.

removing docs for unused variable

Single Sign-out updates for Credentials IDA

14.04 doesn't install httplib2 by default (12.04 does)

Our user play uses uri which requires httplib2.

adding ec2_instance_profile_name to launch instance CD

fix error - found a duplicate dict key (when).  Using last defined value only

using YAML syntax

We have users who are absent and keyless

We don't always want to immediately remove them, as we use these configs
to pull them off of other hosts.

use YAML syntax to write ansible tasks

Single Sign-out updates for IDAs

writing ansible tasks using YAML syntax

added the custom fail message

Move themes to data dir

OPS-1433 grant-ssh access job should fail if user has no keys

Added unsuable_password option to manage_edxapp_users_and_groups.yml