* cleanup named imports

Rebase on kubernetes v1.6

Fixes https://github.com/kubernetes/helm/issues/2251
In case a user tries to delete a non-existent release,
the error message displayed was missing release-name.

Fixes https://github.com/kubernetes/helm/issues/2254

This provides the Chart.yaml field `tillerVersion`, which is a semver
range. It allows users to choose to constrain a chart to a specific
version.

The reason for this is that we keep introducing new template functions,
but we have no way of saying "this chart will only work with Tiller
newer than...".

The check on version is _only_ done on Tiller. The client does not check
at all, since it does not do any template expansion on its own.

Add plugin management subcommands for installing and removing plugins
to `$HELM_HOST/plugins`.

Install accepts a vcs url or a local directory.

```
$ helm plugin install http://github.com/adamreese/helm-env
Installed plugin: env

$ helm plugin list
NAME    	VERSION	DESCRIPTION
env     	0.1.0  	Print out the helm environment.

$ helm plugin remove env
Removed plugin: env
```

closes #1977

Fixes a bug where tags and conditions specified in values.yaml were not being respeceted, causing incorrect loading of subcharts.

Closes #2139

Trigger deployment as success when new replicaSet has reached minimum you need which is number of replicas minus maxUnavailable

This makes it possible to re-use the existing values on an upgrade,
merging in any new values set by `-f` or `--set`.

Closes #1876

This exposes the skip-refresh flag to helm init to make it possible to
initialize Helm without fetching the index.yaml of the stable repo.
This mirrors the behavior of 'helm dep up's skip-refresh flag.

Closes #2127

support repo alias in requirements.yaml
The syntax should be like: "alias:reponame" or "@reponame".

closes: #1985

Fix codefences and nits in charts.md. Correct whitespace in charts. Add clarity to description of ImportValues requirements field.

Implements a mechanism in requirements.yaml to allow the import
and re-parenting of value table from child chart.

Closes #1995

Following tests were failing unnoticed
- [ ] TestUpdateRelease_VerifyOptions
- [ ] TestUpdateRelease_VerifyOptions

Fixed those tests for the reason of failure.
Also added error checking to rest of the tests in same test-file,
so that new failures do not un-noticed.

The following kinds are newly addressed:

  CronJob
  LimitRange
  ReplicaSet
  ResourceQuota
  StatefulSet

Furthermore, adjust the installation and uninstallation order to
better respect likely dependencies. Bare pods remain a difficult one
to place properly in both sequences.

During installation and uninstallation, handle the RBAC-related
ClusterRole, ClusterRoleBinding, Role, and RoleBinding kinds in an
order that respects their potential referential integrity, namely that
ClusterRoleBindings can refer to ClusterRoles and ServiceAccounts, and
RoleBindings can refer to ClusterRoles, Roles, and ServiceAccounts.

Fixes #2199.

closes bug: 2103

Closes #2162

Trying to fix #2158

This change sorts the helm index file after downloading from a repo.

Closes #2186