ref(cmd/helm): show grpc error msg from prettyError

Fix tiller deployment on RBAC clusters

Removes unnecessary if block

closes #3795

import client auth plugins

Implement before-hook-creation delete policy

Cover hook-succeeded, hook-failed and before-hook-creation hook delete policies.

stream releases when listing

closes #3795

fix output leak from unit tests of helm create command

Signed-off-by: Arash Deshmeh <adeshmeh@ca.ibm.com>

Adds automountServiceAccountToken when a serviceAccount is specified.

Prior to this, tiller falls back to contacting the KUBERNETES_SERVICE on
localhost:8080 rather than respecting the cluster IP in the
KUBERNETES_SERVICE_{HOST,PORT} environment variables.

Fixes #3460, fixes #3467.

Updated kubernetes_distros.md with DC/OS note.

Removed typos (additional plus signs)

ref(*): kubernetes v1.10 support

* fix(helm): fix golint warning due to ApiVersionV1 constant name
Signed-off-by: Arash Deshmeh <adeshmeh@ca.ibm.com>

* fix(helm): fix golint warning due to ResolveChartVersionAndGetRepo comment
Signed-off-by: Arash Deshmeh <adeshmeh@ca.ibm.com>

* fix(helm): fix golint warnings on HttpGetter type and SetCredentials method missing a comment
Signed-off-by: Arash Deshmeh <adeshmeh@ca.ibm.com>

* fix(helm):fix golint warning due to comment on FindChartInAuthRepoURL function
Signed-off-by: Arash Deshmeh <adeshmeh@ca.ibm.com>

* fix(helm): fix golint warning due to RepoFile type name
Signed-off-by: Arash Deshmeh <adeshmeh@ca.ibm.com>

* fix(helm): fix golint warning due to ParseString comment
Signed-off-by: Arash Deshmeh <adeshmeh@ca.ibm.com>

Remove outdated note from doc

Updated kubernetes_distros.md with a note that Helm is running fine on Kubernetes on DC/OS

Update tiller_ssl.md

"that" is duplicated.

Updated to mention the --purge flag on delete

See: https://github.com/kubernetes/helm/issues/2332

add back the default 5 second connection timeout

Create index.yaml if missing when running repo index --merge

add a link to Jenkins X and how it uses helm

Add issue_template.md which asks for version info.

fix Syntax error

fix Syntax error