adding CMS base
Improving the sandbox update script

This modifies the edx_ansible role to dump a clean var
file on disk that can be used for subsequent update runs
so that config vars will not be lost

also changes the ansible tmp directory to /var/tmp which is a better
location than using $HOME (used for debugging mostly)
install the complete edx_ansible role
Merge remote-tracking branch 'origin' into jarv/dump_vars
adding the missing dumpall.yml.j2 file
removing remote_tmp override
adding ease and certs to version removal
Adding agard tags to our subnets.
formatting.
syntax fixes
group doesn't exist on first run
updates for notifier from stanford install
subnet tags for Asgard.
Merge pull request #646 from edx/e0d/cf-for-asgard

Adding agard tags to our subnets.
Merge pull request #640 from edx/jarv/dump_vars

Improving the sandbox update script
missing deploy tag on deploy.yml tasks
Merge pull request #652 from edx/jarv/missing-deploy-tag

missing deploy tag on deploy.yml tasks
replacing deploy tags with taggged include
Merge remote-tracking branch 'origin' into jarv/no-deploy
changing default instance type for ubuntu ami to m1.medium