Clean up git installer script.
Split out git deployment to a separate recipe: git_deployment.
Fix paths in git_deployment recipe.
Don't write summary file when installing stack.
Don't set a password for the git deploy user (key auth only)
Use the Chef node config in the bootstrap scripts.
Don't read/write config file anymore.

Use Chef attributes passed in the node json file.
More deploy_user -> deploy-user name changes.
Rename git_deployment -> stackful-git
Node.js launcher now using the new config format.