Only 23 days left of active development before master freezes.

[David Miller]

From: "Carlos O'Donell" <carlos@redhat.com>
Date: Wed, 17 Dec 2014 10:18:28 -0500

> We have 23 days of active development before I freeze master for 2.21.
> 
> If you object, please speak up now.

I don't think we should set a freeze or release date until the tree
even builds for all targets again after the -Werror addition.

Some targets have been known to be broken for weeks.