Use same addons script for init.d and systemd.

Fixing a couple of JSON files 

Fix vagrant with etcd in pod

RFC: Kubelet: a step towards to better encapsulation of docker functions

Stop the bleeding for #6059

Add a test verifying that etcd watches work even when there's a bunch of unrelated changes

Make expose use introspection to grab the port value if possible.

Reorder/Modularize networking e2e + pod launch phase, clean up comments.  

We want to stop leaking more docker details into kubelet, and we also want to
consolidate some of the existing docker interfaces/structs. This change creates
DockerManager as the new home of some functions in dockertools/docker.go. It
also absorbs containerRunner. In addition, GetDockerPodStatus is renamed to
GetPodStatus with the entire pod passed to it so that it is simialr to the what
is defined in the container Runtime interface.

Eventually, DockerManager should implement the container Runtime interface, and
integrate DockerCache with a flag to turn on/off caching. Code in kubelet.go
should not be using docker client directly.

Validating against negative weights for priority functions

Removed PodStatus.Host

Create Docker images for master components 

Also improve service printing to include public IP addresses.

Add some more clarity around "controversial" or "complex" PRs and merging.

Support GKE for serve_hostnames soak test

Removed ancient api doc files.

Infer the URL from the existing git setup. (I don't push via ssh)

Use an up-to-date nginx image for e2e tests

Add basic latency metrics to scheduler.

Revert "Parallelize architectures in both the building and packaging pha...

Kubelet watching only its own Node object

Also document using the recursive/ours merge strategy, because
it's almost certainly what we want to do in this case.

Remove dead, buggy code

Add NFS export/import pod examples.

Increase ulimit -n for apiserver.