title: Eliminate many require_relatives in the ruby project
body: <p>Usually there are lib, bin and spec(or test) folders in the ruby project(at least, in the generated gem). Now there are many require_relative imports in each file in the lib and also ugly require_relative '../lib/some_files' in the spec(or test) file. Is there any way to eliminate all those require_relative imports? I think there's some kind of trick with <strong>FILE</strong> but I don't know which exactly.</p>