Warning message when bundling (4.2 branch)

[korny]

prototype-rails at /Users/murphy/.rvm/gems/ruby-2.1.5@schatten/bundler/gems/prototype-rails-d7c004222485 did not have a valid gemspec.
This prevents bundler from installing bins or native extensions, but that may not affect its functionality.
The validation message from Rubygems was:
  ["README"] are not files
Using prototype-rails 4.0.0 from git://github.com/rails/prototype-rails.git (at 4.2)

I guess README is now named README.md?

[guiman]

+1 on this one, there is a PR for it #35

[korny]

Thanks! :)