Important change to the policy governing the 10.2 branch.

[Rick Hillegas]

I have wrapped up the last mega-merge from the trunk to the 10.2 branch. 
At this point the branch has changed state from beta to release 
candidacy. I would like to tighten up the branch control policy now. 
From this time onward, I would like us to focus on keeping the branch 
stable. From now on, please hand-port your fixes from the trunk to 10.2. 
Until we vet a release candidate, please be extra cautious about porting 
fixes which might destabilize the branch.

Thanks,
-Rick