Gemfile in chargify2-0.2.6 vs Gemfile in chargify2-0.2.7

@@ -1,8 +1,8 @@
-source "http://rubygems.org"
+source 'http://rubygems.org'
 
-# Specify your gem's dependencies in chargify2.gemspec
 gemspec
 
-group :development do
-  gem "debugger", :platforms => [:ruby_19]
+group :debug do
+  gem 'debugger', :platforms => [:mri_19]
+  gem 'byebug', :platforms => [:mri_20, :mri_21]
 end