Allow the .gemspec to be used by Bundler. Shelling out to git presumes that you're generating a gem from the current directory.
Merge pull request #4 from jeremy/bundler

Allow the .gemspec to be used by Bundler
make gemspec files regex more specific
Merge pull request #12 from cldwalker/ruby-2.0

Ruby 2.0 Support
Add 1.9.3-p385 headers. Bump to version 1.1.8