Enhance the rolling updater to support maintaining minimum pod
availability for the duration of the update process.

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Support kube-registry-proxy addon in trusty nodes

Fix typos in namespaces.md

e2e: collect supervisord.log

Bug fix for Elasticsearch Example

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Stopped the token argument from being passed to the elasticsearch_discovery script. It was no longer needed after kubernetes/kubernetes#12621 was merged. The token argument causes the script to error out and stops Elasticsearch nodes from forming a cluster.
Bumped docker tag from 1.1 to 1.2 and updated README and RC config to reference updated version.

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Add Travis notifications to Slack channel.

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Actually make the pushed version directory match binary versions

The health check is no longer needed since health checks are no longer
run by master but updated by the kubelet; so a host with the incorrect
host name will not be updated and show 'NotReady' status
Signed-off-by: Sami Wagiaalla <swagiaal@redhat.com>

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Revert "Volume Plugin for Cinder; Openstack Block Storage"

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Volume Plugin for Cinder; Openstack Block Storage

monit has been replaced with supervisord. Collect its log instead.

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This commit merges the NamespaceExists admission controller
into the NamespaceLifecycle admission controller.

New tests were added to the NamespaceLifecycle addmission controller
tests, and the test case was fixed so that it runs without panicing.

Additionally, the NamespaceExists admission controller was marked as
deprecated in the docs.

Closes #12053