ref(tiller): dry up client/server version checks

Update docs for new Homebrew formula

feat(tiller): validate objects against kube schema on dry-run

docs(install_faq): document tiller panic for auth failure

This documents an issue reported in Slack that turned out to be related
to security configuration in Kubernetes.

ref(tiller): minor style refactor

chore(tiller): update Sprig to 2.8.0

feat(1480): add --version flag to package command

fix(tests): fix broken tests for upgrade

Play nicely with roles that don't allow creating namespaces

docs(helm): change `trunc 24` in base charts

Closes #1744

Merge branch 'docs/change_trunc_length' of https://github.com/wilkers-steve/helm into docs/change_trunc_length

The upper limit for a chart name is 63 characters now instead of
14 or 24 in older versions of Kubernetes. This replaces `trunc 24`
in the example chart provided to `trunc 63` to reflect the new
length available.

Closes #1637

feat(*): Adds support for timeout flag

chore(*): bump to 2.1.2

fix(upgrade):Check the raw vals during an upgrade properly

The upper limit for a chart name is 54 characters now instead of
14 or 24 in older versions of Kubernetes. This replaces `trunc 24`
in the example chart provided to `trunc 54` to reflect the new
length available.

Closes #1637

fix(helm): fix rollback documentation

docs(chart_template_guide): link to Go template docs

feat(helm): add release debugging for upgrade

chart repo docs: small correction/clarification

Typo in helm quickstart guide.