feat(helm): Add --node-selectors, --override and --output flags to helm init

This feature enables users to specify more control over where Tiller pod
lands by allowing "node-selectors" to be specified. Alternatively, the
"--output" flag will skip install and dump Tiller's raw Deployment manifest to stdout so user may alter it as they see fit (probably with a JSON manipulation tool like jq).

Closes #2299

fix(helm): invoking getterConstructor returns downstream error now

* helm create all defined template names should be namespaced https://docs.helm.sh/chart_best_practices/#names-of-defined-templates

* Update Doc

* Update example

* Closes #2937
Added required dependency to run make test in developer's guide

* Fixed base URL appending when chart address is not absolute

* Removed requirement from developers.md

* Fixed unnecessary line breaks

* Added tests for query string repo

* Returning URL along with error

Ignore Apiversion, use Kind and Name only to search for original resource on update/delete

chore(*): bump version to v2.6.2

(cherry picked from commit a4f965e0)

Correctly persists Release upgrade failure

fix(sorter): Adds missing unit test

fix(helm):Fix dependency aliaes not working

Remove facebookgo dependencies

docs/developers.md: add notes for `k8s.io` dir

bug(tiller): sort unknown but different kinds alphabetically based on kind name

Avoid panics if test is failing

More helpful wait messages in tiller logs

fix(helm): Fix the bug in helm dependency update -verify

Adds a unit test that was missed as part of #2961

Fix(helm): fix the bug of helm search --regexp

update link to roadmap

Load StorageClass before PersistentVolume is loaded.

Install docs change

Add the status of pod when using "Helm status" command, as the issue #2318

Kind can change it's APIVersion with time, such as "Deployment" which was
"extensions/v1beta1" and then migrated to "apps/v1beta1" in Kube 1.6.

Name, Kind and optinally Namespace are used to find relevant Info
object for a original resource which is being upgraded, it safe enough,
as it is uniquely identifies an object.

This reverts commit edd4e561.

This reverts commit 965cb7fd.

fix(deps): fix issues when running glide up

When running glide update there are errors due to pinned versions
in the glide.yaml file mixed with getting a more recent version of
kubernetes. client-go needs a newer version of go-autorest.

Note, go-autorest is pinned to v8.0.0 rather than the latest
release of v8.4.0 because kubernetes is pinned to v8.0.0.