slimgems 1.3.9

SlimGems is a drop-in replacement for RubyGems, a package management framework for Ruby. We forked the project at 1.3.7, which was a great stable release. SlimGems focuses on maintaining a sane and stable API. We believe that the project has been put through enough stress testing by the community to lock into the current API functionality for the forseeable future. We will also continue to improve the runtime performance over time; we can do this without changing the API.