rdoc task is broken in beta22
Created by: graaff
The rdoc task is broken in beta22 due to RSpec::Core::Version::STRING not being defined. This happens because rspec/core/rake_task isn't pulling in version. I've fixed this by explicitly pulling in version in the Rakefile, since it didn't make sense to me for the rake_task to provide the version, but perhaps you have a different opinion about this.