Fallback behavior for rubygems < v1.9

[hooptie45]

RubyGems does not support #metadata in versions before 1.9, so this gem will not work in rubygems v1.8.x. Updating rubygems in not an option for me at the moment, so I'd like to see if we can find a good fallback behavior.

One option(or hack) that I've been using is to fallback to the gem name when the gem metadata is not available. This worked well for me; although there is probably a better/less hacky way to solve this issue.