Upgrade `requests` module to 2.3.0
Upgrade `oauthlib` module to 0.6.3
Update AUTHORS
Migrate all enabled service variants databases
allows overriding ssh user
refactoring key handling for redhat variants.
Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Adding vpc_subnet_id to allow for t2 instancds

Update ansible-provision.sh

Taking out verbose mode

taking out diff mode
Make the tops of the letters nicer
Conditional to change sandbox user
Merge pull request #1304 from edx/ned/add-tops-to-letters

Make the tops of the letters nicer
Merge pull request #1307 from edx/han/common_web_user

Conditional to change sandbox user
Changing default configuration version to release
Merge pull request #1310 from edx/han/configuration_version

Changing default configuration version to release
Merge pull request #1308 from edx/release

Master ... release for Sandbox Changes
Merge pull request #1275 from edx/han/aws-t2-instances

Adding vpc_subnet_id to allow for t2 instances
Add boto to alton.
Alton is run by the web user.

So the web user needs to be able to access the boto file and know where to look for it.
Merge pull request #1311 from edx/feanil/alton_boto

Add boto to alton.
add disabled check.
Merge pull request #1314 from edx/e0d/add-disabled-check

add disabled check.