+ Monkey-patch email.message._formatparam under Python 3:
+ replace it with _formatparam from Python 2.7
+ to avoid re-encoding non-ascii params.
+
+ Fix: do not decode bytes to unicode under Python 2.7.
+
+ Stop supporting Python 2.6.
+
+ Code cleanup: fixed flake8 errors and warnings.
+
+Version 2.7.0 (2017-04-26)
+
+ Use m_lib.defenc instead of m_lib; install it from PyPI.
+
+ Make options --save-headers|body|message to work with multipart subparts.
+
+Version 2.6.0 (2014-06-08)
+
+ Make options -e/-i to work with multipart subparts.
+
+ Add option -I to completely ignore a part - no headers, no body,
+ no warning.
+
+ Open all output files in binary mode. Output os.linesep instead of '\n'.