Merge pull request #142 from thorduri/master

Tyop in warning output
Bump to github 0.3 which fixes proxy install issue

The latest github cookbook, version 0.3, has a fix that picks up the
http_proxy/https_proxy environment configuration during network calls.
This fixes #106 where Berkshelf API would not install when using a
proxy.
Merge pull request #148 from amaltson/github-asset-fix

Bump to github 0.3 which fixes proxy install issue
Do not run berks-api as root.

Use chpst to set the user to node[:berkshelf_api][:owner]
in the berks-api runit run script.
Have the app recipe create the user before it's home directory.

This resolves the issue of having to converge the node twice
to pick up the directory owner/group permissions.