agent.gemspec in agent-0.1.0 vs agent.gemspec in agent-0.9.0

@@ -11,9 +11,10 @@
   s.homepage    = "https://github.com/igrigorik/agent"
   s.summary     = %q{Agent is a diverse family of related approaches for modelling concurrent systems, in Ruby}
   s.description = s.summary
 
   s.rubyforge_project = "agent"
+  s.add_development_dependency "rake"
   s.add_development_dependency "rspec"
 
   s.files         = `git ls-files`.split("\n")
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }