Gemfile in citeproc-js-0.0.2 vs Gemfile in citeproc-js-0.0.6

@@ -1,10 +1,18 @@
 source :rubygems
 gemspec
 
-group :debug do
-	gem 'ruby-debug', :platforms => [:ruby_18, :jruby]
-	gem 'ruby-debug19', :require => 'ruby-debug', :platforms => [:ruby_19]
+
+platforms :ruby_19 do
+	gem 'johnson', '~>2.0.0.pre3'
+	gem 'ruby-debug19', :require => 'ruby-debug', :group => :debug	
 end
 
-gem 'therubyrhino', '~>1.72', :require => 'rhino', :platforms => [:jruby]
-gem 'johnson', '~>1.2', :platforms => [:ruby_18]
+platforms :ruby_18 do
+	# gem 'johnson', '~>1.2'
+	gem 'ruby-debug', :group => :debug
+end
+
+platforms :jruby do
+	gem 'therubyrhino', '~>1.72', :require => 'rhino'
+	gem 'ruby-debug', :group => :debug
+end
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