fix(helm): fix bug when helm update can't find release 1.

Fix link for chart.md file

Change example to use the trademarked WordPress instead of Wordpress.

feat(proto): add appVersion field

docs(OWNERS): initial add of owners file

Fixing plugin test

In the TestLoadDir test case, currently reflect.DeepEqual is expected to fail by error. Expected metadata is different than in the fixture yaml. Also, the type of the struct is mismatching in DeepEqual call (struct vs pointer to struct).

The WordPress community and especially the WordPress foundation
strongly prefer the use of WordPress, with the capital P.

helm(version): set 5 seconds timeout

fix(tiller): Fixes problem with `--wait` on headless Services

Headless services (with `clusterIP` set to `None`) were reporting
as not being ready because they didn't have an IP address. This adds
a logic check to ignore those services.

The old link is invalid (404)

close #1972

move pkg cmd/helm/strvals to pkg/strvals

This is another useful package outside of cmd/helm.

Fixing pkg->cmd call by moving helmpath under /pkg

Including Helm Chart Publisher in related.md

fix(docs): Updates hook documentation for `--wait` flag

The behavior of how the `--wait` flag interacts with the hook lifecycle
was not documented. This adds clarification on the lifecycle behavior
with the `--wait` flag.

fixing typo

This is to comply with the Kubernetes project guidelines.

- maintainers: Those responsible for steering the Helm project
- reviewers: Those who have authoritative LGTM on issues in the queue

Closes #1906

Fix link to charts.md file

If a release's v1 config map was removed, 'helm upgrade' would fail. It
was calling the wrong function to get its history. This has been fixed.

Closes #1829

feat(helm): add support for required properties

Adds the `required` function in enginge.go to support required
properties in values.yml. When a chart developer wishes to specify
intent in requiring a value, they can use this function to declare
an error message that gets returned when chart rendering fails
when a required value is not present in values.yml.

Closes #1580

docs(related): add "Using Helm to Deploy to Kubernetes"

docs(README): update downloads to 2.2.2.

docs(chart_best_practices): create best practices guide

This provides a simple field to expose the version of the application
contained in a chart.

Closes #2036

Clarify inheritance behavior for global variables

fix checksum example

This adds a basic Chart Best Practices guide.

Closes #1993

$.Template.basePath already contains "templates/"