Module contains logic from cca that is shared with the Chrome App Developer Tool.
Nothing must be done when developing locally, but the version must be bumped and published when publishing cca.
When developing changes, npm link cca-manifest-logic, install CADT and then run gulp
whenever files change. When happy with change, publish a new version to npm so that
chrome-app-deleloper-tool always works without needing to npm link in this module.