Gemfile in rubyXL-2.5.4 vs Gemfile in rubyXL-2.5.5

@@ -4,10 +4,9 @@
 gem "nokogiri", ">= 1.4.4"
 gem "rubyzip", ">= 1.0.0" , :require => 'zip'
 
 # Development dependencies.
 group :development do
-  gem "shoulda", ">= 0"
   gem "bundler"
   gem "rake"
   gem "jeweler"
   gem "simplecov", ">= 0"
   gem "rspec", ">= 1.3.4"