This adds support for the following 'helm list' flags:

- all: show all release types
- deleted: show deleted releases
- deployed: show deployed releases
- failed: show failed releases

These flags can be toggled. Only '--deployed' is turned on by default.

On the server side, Tiller's list function can now filter based on a
slice of release.Status_Code filters. While the client only supports a
subset, the server supports all known release.Status_Code types.

Closes #973

Add purge option for completely remove a release from tiller

ref(*): return resource update errors

Resolves #1058

fix(cmd): s/accomodate/accommodate/

feat(pkg/provenance): add OpenPGP signatures

Matt's second offence.

fix(helm): remove extra linter output

This adds the --verify and --keyring flags to:

helm fetch
helm inspect
helm install
helm upgrade

Each of these commands can now make cryptographic verification a
prerequisite for using a chart.

This adds support for OpenPGP signatures containing provenance data.
Such information can be used to verify the integrity of a Chart by
testing that its file hash, metadata, and images are correct.

This first PR does not contain all of the tooling necessary for
end-to-end chart integrity. It contains just the library.

See #983

Closes #1076

feat(chart): support 'image:URL' in charts.

Closes #1034

add docs table of contents and update quick start

Add --set flag to `helm upgrade`

Signed-off-by: Jess Frazelle <me@jessfraz.com>

docs(notes.txt): Add NOTES.txt to Chart spec, and describe chart documentation files

feat(tiller): limit the max len of Release.Name

fix(tiller): upgrade Sprig to 2.5.0

Fix #1070

We need this specifically for trimSuffix.

Closes #1071

This limits the number of characters in a release name to 14. This
preserves 10 characters for customizing the `name:` field in charts.

Relates to #1071

feat(helm): add rollback cmd

Disable validateQuotes linter rule

simplify example container names

This encourages people from making container names depend on release
names.

Add note on installation via cask to README.

update readme example and change repository to https

Include values from both --set and --values when specified on install

Signed-off-by: Jess Frazelle <me@jessfraz.com>