incorrect inventory for example

changing owner/group/mode for ssh_key_forward sudo config

Jarv/update edxapp deploy

Please enter the commit message for your changes. Lines starting

This adds termination support to the ec2 module

Add an empty default xserver env.

Bastion egress should be port 22 not 80.

Jbau/fix/xqueue underscore

it was not called for

Initial set of files to bring up a staging edx

The main thing of interest here is stage-ansible.cfg and
stage-ssh-config, which taken together offer a way to have an
environment with different access control policies and a different VPC
jumpbox without disturbing the usual case of working with your VPC
production hosts.

To run this, edit stage-ssh-config with a sensible jumpbox configuration
and make sure the options in stage-ansible.cfg are the set of ansible
options you expect to use, then invoke ansible with ANSIBLE_CONFIG like
so:
```
ANSIBLE_CONFIG=stage-ansible.cfg ansible-playbook -v -i './ec2.py' edxapp_stage.yml
```