docs(related): Add link to helm-diff plugin

Link to the Helm Chart repository from the Helm project

Add toToml template function

The current README makes no mention of the Chart repository or where to find it. You have to Google to find it or stumble upon it. It was frustrating to come to the Helm project and not easily be able to find where the chart repository was - even though I knew it existed. This patch will make that easier for others.

fix(tiller): Fixes `--wait` panic on upgrade

local path repo verbose - issue #2020

When manifests do not change, they didn't get populated with the
latest label info from the API server and then panic'd. This resolves
that bug

Closes #2043

expose LoadFiles as a usable function

Fix typo singing -> signing

feat(helm): add --skip-refresh flag to 'helm dep up'

In third-party libraries, charts can be embedded in memory rather than in files, directories or
tarballs. Exposing LoadFiles allows a third-party library the ability to load static templates
in and spit out a *chart.Chart.

docs(related): add KubeCon 2016 videos

close #2023

docs(related): add cog-helm to 'Additional Tools'

fix(helm): add message if release deleted successfully

docs(wrapping_up): fix broken link to Tips and Tricks

kubernetes has explicit delete message that user can know resources being deleted for sure,
suggest also add this behavior to helm, as it is too 'quiet' for deletion operation right now.

Closes #2018

Enable --debug flag to print debugging information when use
helm dep update --debug

closes #2020

fix(kube): fix wait and recreate

ref(*): remove error if no tests found on test cmd

fixes #2006

Add --url option to helm serve

fix(helm): resolve symlinks when loading chart

This makes it possible to do a `dep up` without refetching all of
the repositories.While it's less safe, it's useful when doing many
updates in a short period of time (such as in a CI/CD setting)

Closes #2019

Possible fix for #1639

Mention saltside/await in misc related projects

feat(helm): allow disabling plugins

chore(*): bump kubernetes v1.5.3

* resolves #1973