Fix contrib/vagrant/Makefile to work on non bash-symlinked /bin/sh.
fix(controller): update Django admin fields

The declarative definition for presenting Build model objects
in the Django admin still referenced "sha," which is no longer
a field on the Build model. Same for the "version" field on
Config. Both of these caused a 500 error when browsing at
http://local.deisapp.com:8000/admin/

I also added "created" to Build, Config, and Release and
"domain" to Cluster in the admin list display.
Merge pull request #761 from jperville/makefile-bashism-fix

Fix contrib/vagrant/Makefile to work on non bash-symlinked /bin/sh.
fix(contrib/vagrant): fix vagrant n-node Makefile

The fleetctl commands weren't valid, and we should disable host
checking, as Vagrant nodes will change frequently.
Merge pull request #759 from opdemand/vagrant_3node_makefile

fix(contrib/vagrant): fix vagrant n-node Makefile
feat(registry): add s3 redirect support

Allow to configure a s3 region and enable redirecting for
faster and cheaper image downloads.
Further details: https://github.com/dotcloud/docker-registry/pull/293

Fixes #746
Merge pull request #764 from johanneswuerbach/registry-s3-redirect

feat(registry): add s3 redirect support
refactor(seed-deis-registry): move to .service file

Moves seed-deis-registry to its own .service file, as it doesn't
need to run on all hosts (and shouldn't be specified in user-data).
Merge pull request #770 from opdemand/move_seed_registry

refactor(seed-deis-registry): move to .service file
Merge pull request #763 from opdemand/fix-django-admin

fix(controller): update Django admin fields