https://github.com/kubernetes/helm -> https://github.com/helm/helm
https://github.com/kubernetes/charts -> https://github.com/helm/charts



Signed-off-by: Roc Chan <roc@imroc.io>

When the first rule matching entry for top level dir
will be empty string, the .* rule will match.
Skip this entry as it's not needed for processing.

Closes #1776

This adds a few extra settings to the default .helmignore file. In
doing this, I found a bug that some directory patterns are not
evaluated correctly. Fixed that and added tests.

Closes #989
Closes #1027

https://golang.org/doc/go1.4#canonicalimports

This adds support for .helmignore files. These files roughly follow
the conventions established for .gitignore files:
https://git-scm.com/docs/gitignore

Closes #748