Gemfile in stripe-1.36.2 vs Gemfile in stripe-1.37.0

@@ -1,2 +1,20 @@
 source "https://rubygems.org"
+
 gemspec
+
+group :development do
+  gem 'mocha', '~> 0.13.2'
+  gem 'pry'
+  gem 'rake'
+  gem 'shoulda', '~> 3.4.0'
+  gem 'test-unit'
+
+  platforms :mri do
+    # to avoid problems, bring Byebug in on just versions of Ruby under which
+    # it's known to work well
+    if Gem::Version.new(RUBY_VERSION.dup) >= Gem::Version.new('2.0.0')
+      gem 'byebug'
+      gem 'pry-byebug'
+    end
+  end
+end