v4.3.0

• [#976] Fix to invalidate the second redirect URI when the first URI is the native URI
• [#1035] Allow Application#redirect_uri= to handle array of URIs.
• [#1036] Allow to forbid Application redirect URI's with specific rules.
• [#1029] Deprecate order_method and introduce ordered_by. Sort applications
  by created_at in index action.
• [#1033] Allow Doorkeeper configuration option #force_ssl_in_redirect_uri to be a callable object.
• Fix Grape integration & add specs for it
• [#913] Deferred ORM (ActiveRecord) models loading
• [#943] Fix Access Token token generation when certain errors occur in custom token generators
• [#1026] Implement RFC7662 - OAuth 2.0 Token Introspection
• [#985] Generate valid migration files for Rails >= 5
• [#972] Replace Struct subclassing with block-form initialization
• [#1003] Use URL query param to pass through native redirect auth code so automated apps can find it.
• [#868] Scopes#& and Scopes#+ now take an array or any other enumerable
  object.
• [#1019] Remove translation not in use: invalid_resource_owner.
• Use Ruby 2 hash style syntax (min required Ruby version = 2.1)
• [#948] Make Scopes.<=> work with any "other" value.
• [#974] Redirect URI is checked without query params within AuthorizationCodeRequest.
• [#1004] More explicit help text for native_redirect_uri.
• [#1023] Update Ruby versions and test against 2.5.0 on Travis CI.
• [#1024] Migrate from FactoryGirl to FactoryBot.
• [#1025] Improve documentation for adding foreign keys
• [#1028] Make it possible to have composit strategy names.