lsegal/yard — pull request #742 by kou (2014-02-23 09:58:48+00:00)
Title: rake gem: Support RubyGems 2.0.0 or later

RubyGems 2.0.0 changed API to create gem:

http://rubygems.rubyforge.org/rubygems-update/History_txt.html

> 2.0.0 / 2013-02-24
>
> * Merged Gem::Builder into Gem::Package.
> Use Gem::Package.build instead of Gem::Builder.new(spec).build