Upstream/Downstream cooperation in Ruby

Description of the project: The Debian Ruby team has a lot of experience in package Ruby projects for Debian. During this work, they identified several issues in upstream codebases that makes it more difficult to build a Debian package out of Ruby gems. This project has two goals: 1) raise awareness of those issues among upstream maintainers in the Ruby community, so that the lifes of Debian maintainers, and of distribution maintainers in general, is easier; and 2) provide tools to automatically detect those issues, and fix them if possible.