exvo_helpers.gemspec in exvo_helpers-0.4.0 vs exvo_helpers.gemspec in exvo_helpers-0.5.0

@@ -14,11 +14,13 @@
   gem.files         = `git ls-files`.split("\n")
   gem.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
   gem.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
   gem.require_paths = ["lib"]
 
+  gem.add_development_dependency "rake"
   gem.add_development_dependency 'rspec', ['>= 2.8']
   gem.add_development_dependency 'guard', ['>= 0.10.0']
+  gem.add_development_dependency 'guard-bundler'
   gem.add_development_dependency 'guard-rspec', ['>= 0.6.0']
   gem.add_development_dependency "rb-fsevent"
   gem.add_development_dependency "rb-inotify"
   gem.add_development_dependency "simplecov"
   gem.add_development_dependency "simplecov-rcov"