[SAC] Trac 1.2 upgrade planning/announce

[Sandro Santilli]

I need to schedule the 1.0 -> 1.2 trac upgrade.

The procedure involves bringing the trac service offline
during the upgrade, which consists in:

 1. Backup the databases (~4 minutes)
 2. Install new trac version (~1 minute - done offline)
 3. Upgrade all environments and documentation (~2 minute)

So everything should be completed within 10 minutes.

Do you think the time needs to be announced on osgeo-discuss ?
I was thinking to do this tomorrow morning (Central European Time).

--strk;