gnu: Add ruby 2.1.6 * gnu/packages/ruby.scm (ruby-2.1): New variable.
gnu: Add ruby-multipart-post. * gnu/packages/ruby.scm (ruby-multipart-post): New variable.
gnu: Add ruby-slop. * gnu/packages/ruby.scm (ruby-slop): New variable.
gnu: Add ruby-git. * gnu/packages/ruby.scm (ruby-git): New variable.
gnu: Add ruby-minitest-bacon. * gnu/packages/ruby.scm (ruby-minitest-bacon): New variable.
gnu: Add ruby-minitest-sprint. * gnu/packages/ruby.scm (ruby-minitest-sprint): New variable.
gnu: Add ruby-minitest. * gnu/packages/ruby.scm (ruby-minitest): New variable.
gnu: Add ruby-daemons. * gnu/packages/ruby.scm (ruby-daemons): New variable.
gnu: Add ruby-net-http-persistent. * gnu/packages/ruby.scm (ruby-net-http-persistent): New variable.
gnu: Add ruby-connection-pool. * gnu/packages/ruby.scm (ruby-connection-pool): New variable.
gnu: Add ruby-arel. * gnu/packages/ruby.scm (ruby-arel): New variable.
gnu: Add ruby-bacon. * gnu/packages/ruby.scm (ruby-bacon): New variable.
gnu: Add ruby-useragent. * gnu/packages/ruby.scm (ruby-useragent): New variable.
gnu: Add bundler. * gnu/packages/ruby.scm (bundler): New variable.
gnu: Add ruby-rspec. * gnu/packages/ruby.scm (ruby-rspec): New variable.
gnu: Add ruby-rspec-mocks. * gnu/packages/ruby.scm (ruby-rspec-mocks): New variable.
gnu: Add ruby-rspec-expectations. * gnu/packages/ruby.scm (ruby-diff-lcs-for-rspec, ruby-rspec-expectations): New variables.
gnu: Add ruby-rspec-core. * gnu/packages/ruby.scm (ruby-rspec-support, ruby-rspec-core): New variables.
Merge branch 'master' into gtk-rebuild Conflicts: gnu/packages/gtk.scm
Merge branch 'master' into core-updates Conflicts: gnu-system.am gnu/packages/gstreamer.scm