- Add README.md for node e2e tests
- Add support for --cleanup=false to leave test files on remote hosts and temporary instances for debugging
- Add ubuntu trusty instances for docker 1.8 and docker 1.9 to jenkins pr builder
- Disable coreos-beta for jenkins ci since it is failing - need to investigate

Make #19601 backward compatible.

Fixes #20047

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Deployment: preserve availability when maxUnavailability is not 100%

Fix the nil pointer dereference when counting RS replicas

Fix the nil pointer dereference in addHashKeyToRSAndPods

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Fix broken spark tests to use yaml files, 1 worker, declare DNS depe…

- support allocating gce instances from images and running tests against them
- set --hostname-override to match node name
- add jenkins script to source to reproduce jenkins build locally

Fix flake in LimitRange e2e

fake backoff implementation for speeding up flakey test

Remove redundant call of kube::release::gcs::release.

verify-linkchecker.sh now exits with a non-zero return code if found invalid links

Add DaemonSets and Deployments to valid resources list in kubectl.

Lock across item expiration in the ttl store.

Fix the incorrect deployment.status.unavailableReplicas

add readiness probe to proxy test