Remove the ImageSizePollster

We can use generator to achieve this purpose simply.

Change-Id: Id05c33fb2aa89fd02035c717417d0181e975c3ec
Signed-off-by: Yunhong, Jiang <yunhong.jiang@intel.com>
Update WebOb version specification

Now that the other projects are using WebOb>=1.2 we can
specify that, too.

See bug #1092227 for details.

Change-Id: Ifcb99354f405d9f4dc113d01d83b2a9d76660fc5
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
Merge "Remove the ImageSizePollster"
Merge "Update WebOb version specification"