Gemfile in wukong-3.0.0.pre3 vs Gemfile in wukong-3.0.0

@@ -3,9 +3,10 @@
 gemspec
 
 group :development do
   gem 'rake',        '>= 0.9'
   gem 'rspec',       '>= 2.8'
+  gem 'spork',       '0.9.2'
   gem 'guard',       '>= 1.0'
   gem 'guard-rspec', '>= 0.6'
   gem 'simplecov',   '>= 0.5'
   gem 'pry'
   gem 'yard'