Simplify schedulers.
examples/guestbook-go: build from source and remove bin/docker dep
Update README.md

GoogleCloudPlatform/kubernetes#1454
Use builder instead of build
Use builder instead of build
One last time.
Merge pull request #1 from Gurpartap/patch-1

Remove DOCKER_BIN and boot2docker instructions from README.md
Add context object to interfaces
Add context object in test cases flows
Godeps update
Update to use api.Context
Merge pull request #1454 from proppy/guestbook-go

examples/guestbook-go: build from source and remove bin/docker dep
use _ as the separator for docker container name.
Merge pull request #1452 from derekwaynecarr/introduce_context_obj

Introduce a context object on RESTStorage to prepare for future changes
Merge pull request #1441 from dchen1107/cleanup

Cleanup: Remove unnecessary dash escape when building docker container name
Refactor schedulers, remove schedulers, use generic scheduler.
Add a rate limiter, use it to rate limit docker pulls.
Add ctx to registry interfaces
Merge pull request #1449 from brendandburns/scheduler

Refactor scheduler, use generic scheduler everywhere, delete old code.
Add ctx to registry test cases