Changes waiting review

[David Cheney]

Hi Folks,

I'm blocked on review for these two changes which will lets folks who have upgraded to Quantal try Juju. If you are able, please spend a few minutes reviewing these changes.

https://codereview.appspot.com/6810086 -> environs/ec2: handle 409 errors from PutBucket
https://codereview.appspot.com/6819097 (https://codereview.appspot.com/6819097/) -> environs: enable deploy from quantal

Cheers

Dave