Пакет setup-rb: Информация

- ! fixed jeweler spec detecton by using class variable storage

- * crop upper bound for requires
- ! alias detection for sources with current source name autoaliased
- ! version detection for Hoe module
- ! use self spec array for a gem DSL, or DSL's gemspec array for Gemfile
- - using ruby-gem and rubygem dep prefixes
- ! bones gemspec parser
- ! ruby version deps renderer

- + some new options to mkmf when compilation is enabled