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Also add a makefile. This will need a cherrypick onto 1.0,1.1
with edits to hack/jenkins/test-dockerized.sh to run branch-specific
test scripts.

Also had to modify hack/verify-api-reference.sh to handle volume mount
path peculiarity when doing `docker run -v` inside a container started
with `docker run -v`. See associated comment in
hack/jenkins/test-dockerized.sh

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Large amount of memory churn in etcd helper prefixing keys

Update e2e scripts to run storage tests on GCE/Vagrant

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new google-fluentd 1.5.4-1 build.

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When KUBE_E2E_STORAGE_TEST_ENVIRONMENT is set to 'true', kube-up.sh script
will:

- Install the right packages for all storage volumes.
- Use devicemapper as docker storage backend. 'aufs', the default one on
Debian, does not support extended attibutes required by Ceph RBD and Gluster
server containers.

Tested on GCE and Vagrant, e2e tests for storage volumes passes without any
additional configuration.

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Increase logs verbosity in scalability tests.

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Use k8s-jkns-upgrade-fixed-1 instead of kubernetes-jenkins-gke-upgrade for GKE stable-latest job