Stop caring about Ruby 2.0.0 and Rubinius.
Stop caring about Ruby 2.0.0 and Rubinius.

Even 2.1.0 has fallen out of support:
  https://www.ruby-lang.org/en/news/2017/04/01/support-of-ruby-2-1-has-ended/

I don't care about Rubinius and it has been failing on Travis anyway

Updated the micro versions of others

mvidner/ruby-dbus,mvidner/ruby-dbus