v0.4.0

• Add support for alternative authentication backends including Devise and Warden
• Add --devise option to install generator: rails generate trestle:auth:install User --devise
• Add ability to disable login/logout actions via config.auth.enable_login and config.auth.enable_logout configuration options
• Add config.auth.login_url configuration option
• Add config.auth.human_attribute_name configuration option for translating login fields
• Evaluate config.auth.locale and config.auth.time_zone blocks within controller context