glance requires pyOpenSSL>=0.11

glance uses  OpenSSL.crypto.sign() and OpenSSL.crypto.verify(), which
are new in pyOpenSSL 0.11. Global requirements already fixed, do the
same change in glance

Change-Id: I20ba38a174548c5a5a501351fb9a1a33b235b0b4
Partial-Bug: #1268966
Prevent E500 when delayed delete is enabled

If delayed delete is enabled the user token was not being propagated
properly to the registry in all cases. This resulted in an authentication
error when the API attempted to connect to the registry, which in turn
caused a 500 error from the API.

Fix for bug 1238604.

Also, place a restriction on the highest version of python-swiftclient
for the havana stable branch.

Change-Id: Ifafc1613db034508abfce7ba5e4df582e6056c10
Merge "glance requires pyOpenSSL>=0.11" into stable/havana
Merge "Prevent E500 when delayed delete is enabled" into stable/havana