Application cookbook dependancy causes resolution failure

[jwmarshall]

The recent metadata commit that sets the application cookbook dependancy to '~> 4.0' is causing resolution errors with just about every cookbook I have that relies on application_nginx 2.0.3.

The only fix for me was to pin the previous commit in my berksfile like so:

cookbook "application_nginx", git: "https://github.com/poise/application_nginx.git", ref: "6339af0963139cb42946dec4111defd59502d064"