Fix bug

Content type not passed to encrypted submime causing bug where is only html is sent for example, the email client will not decode the html before displaying the email.

gpg-mailgate.py

@@ -437,7 +437,10 @@ def encrypt_all_payloads_mime( message, gpg_to_cmdline ):
 		# it's skipping an imaginary blank line someplace. (ie skipping a header)
 		# Workaround it here by prepending a blank line.
 		# This happens only on text only messages.
-		submsg2.set_payload("\n" + message.get_payload(decode=True))
+		additionalSubHeader=""
+		if message.has_key('Content-Type') and not message['Content-Type'].startswith('multipart'):
+			additionalSubHeader="Content-Type: "+message['Content-Type']+"\n"
+		submsg2.set_payload(additionalSubHeader+"\n" +message.get_payload(decode=True))
 		check_nested = True
 	else:
 		processed_payloads = generate_message_from_payloads(message)