expose date of deck's deploy

Idea

+status

+priority

+tag

In a card called "*deploy date". Only happen for Wagns we host, as it happens at deploy time.

thinking we may want to do this by cluster, not by wagn.

I think this may be less dire now that there will usually be only two deployments, pinz and ang.

--Ethan McCutchen.....Thu Apr 30 11:07:45 -0700 2009

It would help me when you push out a between-releases release (e.g. right now we're not really running 1.5+2)

--John Abbe.....Mon Feb 21 22:30:50 -0800 2011

+discussed in support tickets

+relevant user stories