SlimGems doesn't survive version checks of recent gemspecs

[triskweline]

Apparently gemspecs allow to definine a minimum Rubygems version. See this gemspec from Rails 4:

https://github.com/rails/rails/blob/8fd422edb8d377c4a7ecef21f7b80f1c6c3156fd/rails.gemspec#L11

Since the last update of SlimGems, the version number of original RubyGems has moved away so far ahead that is is no longer possible to e.g. install Rails 4 with SlimGems:

Gem::InstallError: rails requires SlimGems version >= 1.8.11. Try 'gem update --system' to update SlimGems itself.

Would you consider bumping the version number of Slimgems into the range currently used by Rubygems?

I'd love to be able to keep using SlimGems since I'm working on both old and new Ruby applications. Right now I need SlimGems for old projects and original Rubygems for new projects, which kind of sucks :(