Gemfile in zeppelin-0.5.0 vs Gemfile in zeppelin-0.6.0

@@ -1,2 +1,10 @@
 source :rubygems
-gemspec
\ No newline at end of file
+gemspec
+
+group :development do
+  gem 'rb-fsevent', :require => RUBY_PLATFORM.include?('darwin') && 'rb-fsevent'
+  gem 'growl', :require => RUBY_PLATFORM.include?('darwin') && 'growl'
+  gem 'guard'
+  gem 'guard-bundler'
+  gem 'guard-rspec'
+end