v1.54.0

• New generator: suspenders:single_redirect for setting up Rack::CanonicalHost
• New generator: suspenders:production:compression for setting up Rack::Deflater
• New generator: suspenders:preloader for managing spring
• New generator: suspenders:advisories for installing bundler-audit
• New generator: suspenders:profiler for setting up rack_mini_profiler
• New generator: suspenders:runner for making an app runnable locally
• Added: generator descriptions
• Added: Heroku release phase for running database migrations
• Added: automatic buildpack configuration for Heroku
• Added: system test configuration to opt into JavaScript as needed
• Added: spring-watcher-listen gem
• Changed: from chromedriver-helper to webdrivers
• Changed: replace heroku join calls with heroku apps:info in bin/setup
• Changed: check environment instead of DATABASE\_URL in test helper
• Fixed: ExpandJson merging
• Fixed: spacing in the generated config file
• Upgraded: bitters to version 2.x
• Upgraded: bourbon to version 6.x
• Upgraded: Ruby to version 2.6.6
• Removed: neat gem
• Removed: ctags configuration
• Removed: custom placeholder directories
• Removed: customization for error pages
• Removed: custom Puma config