Package Ruby buildpack as a zip
Remove Ruby src submodule
Ignore all .DS_Store files
remove online ruby buildpack from blobs
Merge branch 'ruby_buildpack' of https://github.com/cf-buildpacks/cf-release into cf-buildpacks-ruby_buildpack

Conflicts:
	config/blobs.yml
Merge branch 'cf-buildpacks-ruby_buildpack' into develop