feat(helm): add better error message to 'dep up'

When a user enters a non-URL (such as stable)
in requirements.yaml and tries to `helm dep up`,
they get a potentially confusing error message.
This tries to make the error message clearer.

Closes #2672

fix(helm): Init not creating local-index symlink on Windows

feat(*): add k8s version to version debug cmd

Installation shell script fix

fix(helm): Set template context inside tpl function to outer function.

docs: downloader plugin documentation

Show kind in resource-not-found-in-release error

This error occures when resource is not found in helm release:
`Error: UPGRADE FAILED: no resource with the name "redis-cluster-sentinel" found`

Changed to:
`Error: UPGRADE FAILED: no ConfigMap with the name "redis-cluster-sentinel" found`

So now that resource can easily be found in cluster.

docs(chart_template_guide): Fix link

Fix a Glob link floating around with some invalid markdown and an invalid
target.

Convert registry to k8s.gcr.io

doc: Fix command formatting on plugins help

docs: Fix broken bullets by Note in docs.helm.sh

Update code-of-conduct.md

Refer to kubernetes/community as authoritative source for code of conduct

Typo fix

Fix package url

feat(repo): Improve error message for missing repositories.yaml

* Add "--namespace" to helm lint

Keep lint syntax as close as possible to "helm install" resp. "helm
upgrade", so that one only needs to change the command.

See #2036

* Align lintCmd struct

* Add "--set" and "--values" to helm lint

Keep lint syntax as close as possible to "helm install" resp. "helm
upgrade", so that one only needs to change the command.

Closes #2495,#2036

* Reuse strict parameter, when rendering during lint

We want to see the rendering fail, if we missed a value, so we reuse
"--strict".

See #2495,#2036

* Fix lint unit test

See #2495,#2036

* Update docs

os.Symlink required additional permissions on Windows, and init is not currently identifying the failed creation.

Related to #2071

feat(status): Optional output as JSON and YAML

New users to helm don't always run `helm init` (e.g. if their cluster
already has helm installed).  The user's initial interaction with any of
helm's repository commands (e.g. `helm repo list`) will then be an error
message due to a missing repositories.yaml in their local config.

Give the user a little hint about how to fix the error without them having
to hunt through the man/help pages.

Remove executable permission bit for charts downloaded from remote repos

Fix example and reference version matching syntax

Fix helm ls in Quickstart

add release checklist

* first staging

* Filled out RBAC and TLS

* Finished draft.

* smoothing

* gRPC endpoint tooling moved up and cleaned

* updating install.md

* addressed comments; will continue expanding and iterating

Address documentation issue raised in #2759

Modified existing unit test to verify the changed behavior.
Removed debug print.