Add initial docs for flake hunting.
Fix gitcommit() in hack/config-go.sh

Previously it would only print a version when the tree was dirty. Fix it
so that it will also print one on a clean tree.

Tested:
- Built it from a committed tree:
  $ hack/build-go.sh
  $ output/go/bin/kubelet -version
  Kubernetes version 0.1, build a091590dd10c

Signed-off-by: Filipe Brandenburger <filbranden@google.com>
Add additional ldflags constants for Kubernetes versioning

Now it is possible to push these variables through ldflags:
- gitMajor
- gitMinor
- gitVersion (from latest annotated tag, output of git describe)
- gitCommit (renamed commitFromGit, intended to have the full sha1)
- gitTreeState (either "clean" or "dirty")

These are spawned into its separate source file, since they are meant to
be updated separately when a new version is released.

Also use the notation vX.Y+ for when git information is not present.
(This is consistent with the kernel build, e.g. Linux 3.15+ means its
version is >= 3.15 and < 3.16.)

v2: Added comments to the individual fields in pkg/version/base.go

Tested:
- Built it and checked the -version output:
  $ hack/build-go.sh
  $ output/go/bin/kubelet -version
  Kubernetes version 0.1+, build c328679ef8aa

Signed-off-by: Filipe Brandenburger <filbranden@google.com>
Merge pull request #1056 from filbranden/versioning_fixes1

Versioning fixes
Adding ListMinions() API to pkg/client.
Allow field/label users to get info from fields

Allows a consumer to get at the information stored in the field selector
for querying an underlying data store.  Not generic, but offers a
simple start.
Move EndpointsController to its own package

Avoids recursive loop with endpoint registry defined
Expose REST resource for endpoints and watch on services/endpoints

Will allow kube-proxies to listen on endpoints.
kube-proxy can read config from the apiserver

All clients that talk to a "master" as a host:port or URL
(scheme://host:port) parameter.  Add tests.
Merge pull request #899 from smarterclayton/watch_services_and_endpoints

Allow Kube proxy to watch for service/endpoint changes
Do not set IFS to the wrong value

The correct way to reset it to the default would be IFS=$' \t\n', but
there's no reason to assume a wrong setting here, in fact, nothing this
script does should depend on an IFS setting, so let's just drop this
line altogether.

Tested:
- Ran "release/build-release.sh <instance>" before and after this
  change. Compared the two trees for differences, only difference was
  the SHA1 in output/release/master-release/src/saltbase/pillar/common.sls

    $ diff -Naur output.orig/release/master-release/ output/release/master-release/
    diff -Naur output.orig/release/master-release/src/saltbase/pillar/common.sls output/release/master-release/src/saltbase/pillar/common.sls
    --- output.orig/release/master-release/src/saltbase/pillar/common.sls   2014-08-27 13:28:52.104241577 -0700
    +++ output/release/master-release/src/saltbase/pillar/common.sls        2014-08-27 13:29:28.296087806 -0700
    @@ -1,2 +1,2 @@
     instance_prefix: MY_INSTANCE_NAME-minion
    -go_opt: -ldflags "-X github.com/GoogleCloudPlatform/kubernetes/pkg/version.commitFromGit 'e169da2abfbf'"
    +go_opt: -ldflags "-X github.com/GoogleCloudPlatform/kubernetes/pkg/version.commitFromGit '8aea0d85e447-dirty'"

Signed-off-by: Filipe Brandenburger <filbranden@google.com>
Merge pull request #1060 from filbranden/clear_ifs1

Do not set IFS to the wrong value
Fix commitFromGit -> gitCommit in release/build-release.sh

This caused Jenkins break on e2e-test because the version of server and
client did not match exactly, as the server was built without the
version ldflags.

Tested:
- Ran "release/build-release.sh ${instance_name}" and confirmed that
  output/release/master-release/src/saltbase/pillar/common.sls has the
  git version under version.gitCommit no longer version.commitFromGit.

Fixes: b777eb19e25240520b5122de299d9ee270c76017
Add unit tests for pkg/client.ListMinions()
Merge pull request #1062 from filbranden/versioning_fixes3

Fix commitFromGit -> gitCommit in release/build-release.sh
Merge pull request #1058 from vishh/add_list_minions

Adding ListMinions() API to pkg/client.
Added getting started guide for Azure.
Merge pull request #1067 from MSOpenTech/azure-readme

Added getting started guide for Azure.
Fix e2d tests w/ http prefix in kube client init
Merge pull request #1068 from jbeda/fix-e2e

Fix e2e tests w/ http prefix in kube client init