This implements a new index file format for repository indices. It also
implements a new format for requirements.yaml.

Breaking change: This will break all previous versions of Helm, and will
impact helm search, repo, serve, and fetch functions.

Closes #1197

The old form is marked deprecated.

Relates to #1196

closes #1244

This orders manifests both for installs and deletes so that the
manifests are ordered by kind.

Closes #1228

This feature allows you to rollback release to the
previous version of release.
resolves #1004

Switch 'helm search' from file crawling to using the indices. Also
add scorable indexing, forward porting the search code I originally
wrote for Helm Classic.

Closes #1226
Partially addresses #1199

If 'helm version' is run on an old server, it will emit an error telling
you the server is too old.

Closes #1223

This makes it possible to run an upgrade that will install a release if
it doesn't already exist.

Closes #1042

This removes --long and adds --short,-q

The default listing is now the long listing, which matches the behavior
of all of the other listing commands.

Closes #1215

This also refactors significant portions of the CLI, moving much of the
shared code into a library.

Also in this release, a testing repository server has been added.

issue #1203

* clean up version output

clean up the formatting, remove unnecessary git_version from version as per discussions with @areese

Signed-off-by: Keerthan Reddy Mala (kmala) <kmala@deis.com>

This fixes a bug where post-install hooks did not result in recording a
failure.

Also fixed a bug where a `--dry-run` will result in an error because
of the recently added status support.

There are several other output inconsistencies that I noticed and filed
as issue #1135.

Closes #1130

If a release has been deleted, `install --replace` will work but the release
status will still be "deleted". This means that subsequest attempts to
change the release will fail. Upgrading the release instead will prevent
such zombie releases.

Closes #1131