Log Message:
Update to 2.120

Upstream changes:
version 2.120: Wed 21 Sep 16:41:23 CEST 2016

	Fixes:
	- revert change of parts(), because it breaks code/the tests.
	  rt.cpan.org#118016 [Tom Callaway]

version 2.119: Mon Sep 19 22:49:50 CEST 2016

	Fixes:
	- Mail::Message::parts() did not return the $msg itself when
	  there are multiparts. [Peter Gunn]
	- Cygwin is not windows.  rt.cpan.org#115286
	- include examples in the man-pages

	Improvements:
	- require perl 5.8.5
	- ::MailDir scans faster with tainting off
	- larger Mail::Message::build() example in SYNOPSIS [Andrew Beverley]
	- $msg->build options file and files now exactly the same.
	- indicate what ::Field::attributes() may return dupplicated
	  keys.  rt.cpan.org #114589 [Randy Diffenderfer]