[admin] December 7 is last day to start a CfC to publish a spec in December

[Arthur Barstow]

Because of the upcoming EoY publication `black out`, December 7 is the 
last day to start a 1-week CfC to publish a document in 2013. As such, 
if you want a spec published in December (December 17 is the last 
publication date of the year), please speak up as soon as possible.

-Thanks, ArtB