Update to latest sprig

Add ChartMuseum to related.md

Minor spelling corrections

fix func comment

Corrected a typo in Easy in-cluster installation

Adding output for the created repos when `helm init`

fix unbound variable issue when get version

add Windows release to README

Also bumps the release version to v2.6.1.

cmd/helm,docs/helm: amend default namespace of tiller

fix(ci): lower number of parallel builds

circleci chokes with too many processes

fix(ci): move deploy instructions to build job

https://circleci.com/docs/2.0/configuration-reference/#deploy

Take a crack at Issue #1401

fix(create): port-forward should use internal port

cc @james-w

CircleCI 2 config

bump k8s version in helm lint to 1.7

The test never reads the manifest type's "content" field, so there's
no reason to populate it explicitly with its zero value.

add section on semantic versioning

Fixes #2888. Clarifies that use of default command should stay DRY

This documentation was ripped from the Helm v2.2.0 release notes. I've referenced it enough times that
it should be placed somewhere in the documentation.

feat(helm): add `template` command

easy install cmd copy/paste for those living on the edge

easy copy/paste for those living on the edge :)

feat(helm):  use openssl sha1 command in Helm get script

'helm upgrade --install' uses the namespace from kube config.