Further version checking fixes

Author: Sam Phippen

Gemfile-rails-dependencies

@@ -13,37 +13,22 @@ when /master/
   gem 'i18n', :git => 'https://github.com/svenfuchs/i18n.git', :branch => 'master'
   gem 'sprockets', :git => 'https://github.com/rails/sprockets.git', :branch => 'master'
   gem 'sprockets-rails', :git => 'https://github.com/rails/sprockets-rails.git', :branch => 'master'
-  if RUBY_VERSION  >= "2.2"
-    gem 'puma', :git => 'https://github.com/puma/puma', :branch => 'master'
-  end
+  gem 'puma', :git => 'https://github.com/puma/puma', :branch => 'master'
 when /stable$/
   gem_list = %w[rails railties actionmailer actionpack activerecord activesupport]
-  gem_list << 'activejob'  if version > '4-1-stable'
-  gem_list << 'actionview' if version > '4-0-stable'
-  if RUBY_VERSION  >= "2.2"
-    gem_list << 'puma' if version > '5-0-stable'
-  end
+  gem_list << 'activejob'  if version >= '4-2-stable'
+  gem_list << 'actionview' if version >= '4-2-stable'
+  gem_list << 'puma' if version > '5-0-stable'
 
   gem_list.each do |rails_gem|
     gem rails_gem, :git => "https://github.com/rails/rails.git", :branch => version
   end
 when nil, false, ""
-  if RUBY_VERSION < '1.9.3'
-    # Rails 4+ requires 1.9.3+, so on earlier versions default to the last 3.x release.
-    gem "rails", "~> 3.2.17"
-  elsif RUBY_VERSION < '2.2.0'
-    # Rails 5+ requires 2.2+, so on earlier versions default to the last 4.x release.
-    gem "rails", "~> 4.2.0"
-  else
-    gem "rails", "~> 5.0.0"
-  end
+  gem "rails", "~> 5.0.0"
 else
   gem "rails", version
 
-  if version >= '5-1-stable' && RUBY_VERSION  >= "2.2"
+  if version >= '5-1-stable' && RUBY_VERSION  >= "2.3"
     gem "puma"
   end
 end
-
-gem "i18n", '< 0.7.0' if RUBY_VERSION < '1.9.3'
-gem "test-unit" if RUBY_VERSION >= '2.2.0' && version =~ /3[.-]2[.-]/