fix(helm): fix 'helm dep up' to fetch by URL

docs(install_faq): document the Docker media type bug

Closes #1824

fix(helm): fix sort order on helm search

add PersistentVolumeClaim to the kind sorter list

At the present time, PersistentVolumeClaims are not a recognized object so it is installed last.
PVCs should be installed shortly after PersistentVolumes have been bound.

feat(README): Adding roadmap location

To exit incubation the roadmap needs to be listed in the wiki per
the incubator documentation. For more detail see
https://github.com/kubernetes/community/blob/master/incubator.md

During search index construction, records were not correctly sorted by
version number, which resulted in the wrong records being inserted into
the index.

Along the way, added tests and fixed a few comments.

Closes #1897

A regression was introduced which required chart download URLs have the
same URL prefix as the chart repo that referenced them. A second
regression transformed that URL into a request for the latest version of
that chart, sidestepping semver constraints.

This fix closes both issues, which were present in the same function.

Closes #1845
Closes #1846

feat(tiller): record a message for each lifecycle step

This adds a simple description for each lifecycle step on a release
object.

Closes #1661

feat(tiller): print tiller version on startup

docs(chart_tips_and_tricks): explain resource-policy.

docs(CONTRIBUTING): switch to CNCF CLA

Change from old Google CLA verbage to new CNCF CLA verbage. This text is
verbatim with Kubernetes' repo.

Closes #1885

This adds a short explanation of the resource policy annotation.

Closes #1880

feat(helm): Add  command to uninstall Tiller

feat(*): Add --wait flag

docs(wrapping_up.md): fixed typo

docs(debugging.md): fixed typo

docs(subcharts_and_globals.md): fixed typo

docs(accessing_files.md): fixed typo

docs(control_structures.md): fixed typo

Add linux/arm64 to cross-compile targets.

Fix typo

Fix typo

Fix SIGSEGV fault

docs(related): add related projects

docs(install): document new upgrade process