technicalpickles/jeweler — pull request #237 by emilsoman (2013-03-16 18:06:44+00:00)
Title: Use Gem::Package.build(spec) instead of Gem::Builder.new(spec).build

Jeweler can't build gems after RubyGems 2.0.0 update.

From RubyGems ReleaseNotes :
>* Merged Gem::Builder into Gem::Package. Use Gem::Package.build(spec)
instead of Gem::Builder.new(spec).build