Quantal archive rebuild proposal

[Micah Gersten]

Now that we have the faster i386/amd64 buildds, I'd like to suggest at
least one extra rebuild earlier in the cycle at least for i386/amd64 so
there's time to get these changes upstream.

Around alpha 1 ~ June 7 (archive raw, lots of failures, should catch
most of the Ubuntu change related gcc-4.7 issues though)
After Feature freeze ~ Aug 23 (archive should be fairly stable for most
dependency trees, check to see what new failures were introduced through
new upstream versions)
During beta 2 freeze ~ Sep 25 (shake out the last round of failures)

Thoughts?

Thanks,
Micah