Merge commit 'mikel/master'

actionmailer/lib/action_mailer.rb

@@ -45,3 +45,5 @@ module Text
 
   autoload :Format, 'action_mailer/vendor/text_format'
 end
+
+require 'action_mailer/tmail_compat'

actionmailer/lib/action_mailer/tmail_compat.rb

@@ -0,0 +1,10 @@
+module Mail
+  class Message
+    
+    def set_content_type(*args)
+      STDERR.puts("Message#set_content_type is deprecated, please just call Message#content_type with the same arguments.\n#{caller}")
+      content_type(*args)
+    end
+    
+  end
+end

actionmailer/test/tmail_compat_test.rb

@@ -0,0 +1,14 @@
+require 'abstract_unit'
+
+class TmailCompatTest < Test::Unit::TestCase
+
+  def test_set_content_type_raises_deprecation_warning
+    mail = Mail.new
+    STDERR.expects(:puts) # Deprecation warning
+    assert_nothing_raised do
+      mail.set_content_type "text/plain"
+    end
+    assert_equal mail.content_type.string, "text/plain"
+  end
+  
+end