Revert "make compatible with rails ~> 3.0"

This reverts commit 9eb05f0.

Reason: no more support to 3.0, sorry @nashby :)

lib/mail_form/notifier.rb

@@ -1,20 +1,5 @@
 module MailForm
   class Notifier < ActionMailer::Base
-    # since ActionMailer 3.0 has own simple_format method
-    # but we need one from the ActionPack
-    # https://github.com/rails/rails/commit/fb34f8577c47d958ca32b7ab585c1904e1a776b1
-    helper do
-      def simple_format(text, html_options={}, options={})
-        @text_helper ||= Class.new do
-          include ActionView::Helpers::TextHelper
-          include ActionView::Helpers::TagHelper
-          include ActionView::Helpers::SanitizeHelper
-        end.new
-
-        @text_helper.simple_format(text, html_options, options)
-      end
-    end
-
     self.mailer_name = "mail_form"
     append_view_path File.expand_path('../views', __FILE__)
 
@@ -37,4 +22,4 @@ def contact(resource)
       mail(headers)
     end
   end
-end
+end

lib/mail_form/views/mail_form/contact.erb

@@ -22,9 +22,8 @@
     value = @resource.request.send(attribute)
 
     value = if value.is_a?(Hash) && !value.empty?
-      content_tag(:ul, :style => "list-style:none;") do
-        value.to_a.map{ |k,v| content_tag(:li, h("#{k}: #{v.inspect}")) }.reduce{ |list, li| list << li << '\n'.html_safe }
-      end
+      list = value.to_a.map{ |k,v| content_tag(:li, h("#{k}: #{v.inspect}")) }.join("\n")
+      content_tag(:ul, raw(list), :style => "list-style:none;")
     elsif value.is_a?(String)
       value
     else