Mailman 2.1.6 release candidate 3

Release candidate 3 for Mailman 2.1.6 is now available.  This fixes a
late-breaking problem with RFC 2231 encoded headers containing bogus or
non-existent charsets.  Specifically, this release includes an updated
version of the email package (2.5.6).

Please try this version out as much as possible.  Hopefully Tokio and I
will get a 2.1.6 final out in about two weeks.

-Barry

https://sourceforge.net/project/showfiles.php?group_id=103&package_id=69562&release_id=324205