Gemfile in signed_form-activeadmin-0.1.2 vs Gemfile in signed_form-activeadmin-0.1.3

@@ -1,3 +1,35 @@
 source 'https://rubygems.org'
 
 gemspec
+
+rails_version = ENV['RAILS_VERSION'] || 'master'
+
+case rails_version
+  when /master/
+    gem 'rails', github: 'rails/rails'
+  when /4-1-stable/
+    gem 'rails', github: 'rails/rails', branch: '4-1-stable'
+  when /4-0-stable/
+    gem 'rails', github: 'rails/rails', branch: '4-0-stable'
+  when /3-2-stable/
+    gem 'rails', github: 'rails/rails', branch: '3-2-stable'
+    gem 'strong_parameters'
+  when /3-1-stable/
+    gem 'rails', github: 'rails/rails', branch: '3-1-stable'
+    gem 'strong_parameters'
+  else
+    gem 'rails', ENV['RAILS_VERSION']
+    gem 'strong_parameters'
+end
+
+aa_version = ENV['AA_VERSION'] || 'master'
+
+case aa_version
+  when /master/
+    gem 'activeadmin', github: 'gregbell/active_admin'
+  when /0-6-stable/
+    gem 'activeadmin', github: 'gregbell/active_admin', branch: '0-6-stable'
+    gem 'sass-rails'
+  else
+    gem 'activeadmin', ENV['AA_VERSION']
+end