Merge pull request #566 from edx/will/devstack-base-box

Set devstack base box to empanada release (RC)
Merge remote-tracking branch 'origin/master' into rc/empanada
Merge remote-tracking branch 'origin' into rc/empanada
Merge pull request #561 from edx/rc/empanada

Rc/empanada
Jasons-MacBook-Pro-4.local -> {{ansible_hostname}}
Merge pull request #729 from edx/jarv/focaccia

Jarv/focaccia
Merge branch 'master' into release
Merge pull request #775 from edx/feanil/release-gugelhupf

Feanil/release gugelhupf
Added HTTP Strict Transport Security headers to ensure clients always
use SSL (helps prevent MITM attacks).
Add tags to the Abbey AMIs.
Move to where we're already querying for the image.
Add the build id and iterate over the hash.
Use refs instead of vars for revisions.
Update var name.
Merge pull request #833 from edx/feanil/tag_amis

Feanil/tag amis
Update to shibboleth role and allow changing the template directory
Updates to play and a fix to the role.
Merge pull request #838 from edx/feanil/update_legacy_ora

Updates to play and a fix to the role.
Initial commit.
Merge pull request #839 from edx/valera/remove-vagrant-version-requirement

Remove vagrant version requirement