Fixed broken link from "chart.md" to "charts.md"

docs(repo): update repo index docs to show new flags

ref(*): add pkg/releaseutil.

fix(helm): ignore dotfiles in charts/ directories

fix(helm): prevent 'helm history' from segfaulting

An release that does not contain chart metadata cannot print its chart
name/version. This fixes a bug found in the wild where a release did not
(for reasons yet unknown) contain a chart.

Closes #1348

fix(helm): remove unused consts from client

ref(helm): add new line after repo remove msg

Const variables defined in client.go weren't used
anywhere.

Ref #953

This causes 'helm dep [up|install]' to ignore files in charts/ that
start with either a dot or an underscore. It also changes the
chartloader to ignore those files.

Also, if a 'helm dep up' does not find a charts/ directory, it creates
one.

Closes #1342

feat(tiller): add optional grpc tracing

This adds the `--url` flag to examples.

Closes #1343

fix(k8s): Update to latest Kubernetes release

fix(Makefile): allow overriding the version for canary builds

fix(tiller): when delete fails, mark release as deleted

fix(Makefile): explicitly set bash shell in Makefile

fixes #1302

ref(scripts): use gometalinter for linters

fix(helm): make 'helm help' text punctuation consistent

ref(helm): remove old structure functions

Closes #1301

I think this got lost in a refactor. Was just bothering me.

This replaces the old structure functions with the functions in
cmd/helm/helmpath.

Closes #1318

ref(repo): move urlJoin to the right package

When a deletion fails to remove a manifest file, the release should
still be marked as deleted. This changes the error handling to try to
delete all manifests, and then mark the release as deleted, then return
the errors.

Closes #1305

I wrote urlJoin to fix URL joining, but I put it in the wrong place and
never used it. This moves it to the right place, and replaces the hacky
previous solution.

docs(README): update download information

fix(tiller): correct sort manifests by type

chore(ci): limit cross build targets

Closes #1313

Limit cross builds to linux/amd64 linux/386 darwin/amd64

fix(ci): fix ci builds reporting dirty repo