Release 2016-11-21

Changelog:

• CF-661 Invalid glance image URL breaks VM migration
• CF-659 Security groups with and without bitmask
• CF-657 restore_vms_state fails with ImportError
• CF-642 Incomplete migrations of attached volumes report failures
• CF-652 Mapping to nothing raises AttributeError
• CF-648 KeyError during quota migration
• CF-644 Make sure bbcp is installed on remote hosts in /tmp/bbcp
• Update installation instructions
• Fix few bugs and prepare code for complex migrations
• Add keystone Role and User discovery
• [CF-570] Add network and subnet discovery.
• [CF-569] Add flavor parameters discovery.
• [CF-612] Creating cinder volume types
• [CF-636] Mark volumes on source cloud as deleted
• CF-641 Invalid report for tenant migration
• CF-640 Ephemeral migration failure
• CF-516 Migration report
• [CF-603] Extend functional tests to verify migration of user quota migration