refactor(controller): the great celery purge
fix(scheduler): add gunicorn timeout for long-running methods
Merge pull request #1834 from gabrtv/purge-celery

Remove Celery from the Controller
chore(registry): bump version to v0.8.1
test(registry): remove unit tests

the unit tests are outdated, useless and consistently failing. We were
cloning and running the unit tests correctly some months ago, but now
it requires a local redis. Unit tests are covered by
docker/docker-registry, anyways.
Merge pull request #1838 from bacongobbler/bump-registry

chore(registry): bump version to v0.8.1
ref(tests/etcdutils): optimize test-etcd Dockerfile

Reduces the virtual size of "deis/test-etcd" from 467.4MB to 200.8MB.
Merge pull request #1840 from mboersma/optimize-test-etcd

ref(tests/etcdutils): optimize test-etcd Dockerfile
refactor(makefile): remove fleet, switch to deisctl and custom images
fix(user-data): restore default discovery url
docs(readme): update root readme with new deisctl instructions
docs(hacking): new docs for hacking on deis
fix(readme): address feedback, fix typos
fix(makefile): default to 3 nodes, test for docker binary
docs(readme): add hack instructions to readme, remove newline
ref(Makefiles): use $BUILD_TAG, which defaults to "git rev-parse"
ref(tests): use images from "make build" in component tests