+Version 2.5.1 (2014-04-??)
+
+ Make option -i to work with multipart messages.
+
+ Open all files in binary mode. Output os.linesep instead of '\n'.
+
+ Test --save-headers|body|message masks one after another to allow
+ saving a message or a subpart to more than one file.
+
Version 2.5.0 (2014-03-18)
Add option --set-header=header:value to set header's value (only at the top