Merge branch 'master' into dbus-update

gnu: Add ruby-yard.

* gnu/packages/ruby.scm (ruby-yard): New variable.

gnu: Add ruby-rspec-2.

* gnu/packages/ruby.scm (ruby-rspec-2): New variable.

gnu: Add ruby-rspec-mocks-2.

* gnu/packages/ruby.scm (ruby-rspec-mocks-2): New variable.

gnu: Add ruby-rspec-expectations-2.

* gnu/packages/ruby.scm (ruby-rspec-expectations-2): New variable.

gnu: Add ruby-rspec-core-2.

* gnu/packages/ruby.scm (ruby-rspec-core-2): New variable.

Merge branch 'master' into core-updates

gnu: Add ruby-libxml.

* gnu/packages/ruby.scm (ruby-libxml): New variable.

gnu: Add ruby-shindo.

* gnu/packages/ruby.scm (ruby-shindo): New variable.

gnu: Add ruby-formatador.

* gnu/packages/ruby.scm (ruby-formatador): New variable.

gnu: Add ruby-notiffany.

* gnu/packages/ruby.scm (ruby-notiffany): New variable.

gnu: Add ruby-shellany.

* gnu/packages/ruby.scm (ruby-shellany): New variable.

gnu: Add ruby-nenv.

* gnu/packages/ruby.scm (ruby-nenv): New variable.

gnu: Add ruby-lumberjack.

* gnu/packages/ruby.scm (ruby-lumberjack): New variable.

gnu: Add ruby-docile.

* gnu/packages/ruby.scm (ruby-docile): New variable.

gnu: Add ruby-bio-logger.

* gnu/packages/ruby.scm (ruby-bio-logger): New variable.

gnu: Add ruby-cucumber-core.

* gnu/packages/ruby.scm (ruby-cucumber-core): New variable.

gnu: Add ruby-log4r.

* gnu/packages/ruby.scm (ruby-log4r): New variable.

gnu: Add ruby-gherkin3.

* gnu/packages/ruby.scm (ruby-gherkin3): New variable.

Merge branch 'master' into core-updates