def initialize_rack_builder
      builder = ::Rack::Builder.new 
      builder.use ::Rack::ShowExceptions
      builder.use ::Rack::Lint
      builder.use ::Rack::ConditionalGet
      builder.use ::Rack::Head      
      
      builder 
    end
def initialize_rack_builder
      builder = ::Rack::Builder.new 
      builder.use ::Rack::ShowExceptions
      builder.use ::Rack::Lint
      builder.use ::Rack::ConditionalGet
      builder.use ::Rack::Head      
      
      builder 
    end
Initialize the Rack builder instance for this server

 @return ::Rack::Builder instance