Apps by ID

All heroku_app state & attribute references are now only by ID (UUID), no longer supporting interchangeability with app name.

🚨 Major version, HCL changes required, see the new Upgrading guide.

Features

• heroku_app resource now stores state id as app ID instead of name
• all heroku_app references converted to app_id (from app) with UUID validation
• automatic state migration for these changes
• updated documentation covering all changes.