Required files
apipie/routing
apipie/markup
apipie/apipie_module
apipie/configuration
apipie/method_description
apipie/resource_description
apipie/param_description
apipie/errors
apipie/error_description
apipie/validator
apipie/dsl_definition
apipie/railtie
apipie/extractor
apipie/version