Updated openstack/openstack
Project: openstack/glance  9c0ada37c9471c5113664ac0f89b88ff4b215c48
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Bump hacking to 0.8 and get python 3.x compatibility

Bump hacking dependency to 0.8 to get python 3.x compatibility
Fixes done in order to avoid errors after enabling hacking 0.8

Change-Id: Ic878fe2e1bd3f65f7f95a9b5c7a192dac81b749d
Closes-Bug: #1257282